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    <link:label id="lab_odfl_WorkersCompensationClaimsMember_C73F20A3DFAE3FF7A816800A78CD8907_label_en-US" xlink:label="lab_odfl_WorkersCompensationClaimsMember_C73F20A3DFAE3FF7A816800A78CD8907" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Workers Compensation Claims [Member]</link:label>
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    <link:loc xlink:href="odfl-20161231.xsd#odfl_WorkersCompensationClaimsMember" xlink:label="loc_odfl_WorkersCompensationClaimsMember_C73F20A3DFAE3FF7A816800A78CD8907" xlink:type="locator" />
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    <link:label id="lab_odfl_CargoLossAndDamageClaimsMember_C4E8985103BDC23ED670800A78CD01F4_documentation_en-US" xlink:label="lab_odfl_CargoLossAndDamageClaimsMember_C4E8985103BDC23ED670800A78CD01F4" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Cargo Loss And Damage Claims [Member]</link:label>
    <link:loc xlink:href="odfl-20161231.xsd#odfl_CargoLossAndDamageClaimsMember" xlink:label="loc_odfl_CargoLossAndDamageClaimsMember_C4E8985103BDC23ED670800A78CD01F4" xlink:type="locator" />
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    <link:label id="lab_odfl_BodilyInjuryAndPropertyDamageMember_5891FAA27E082050BEE5800A78CD4CAD_terseLabel_en-US" xlink:label="lab_odfl_BodilyInjuryAndPropertyDamageMember_5891FAA27E082050BEE5800A78CD4CAD" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Bodily Injury And Property Damage [Member]</link:label>
    <link:label id="lab_odfl_BodilyInjuryAndPropertyDamageMember_5891FAA27E082050BEE5800A78CD4CAD_label_en-US" xlink:label="lab_odfl_BodilyInjuryAndPropertyDamageMember_5891FAA27E082050BEE5800A78CD4CAD" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Bodily Injury And Property Damage [Member]</link:label>
    <link:label id="lab_odfl_BodilyInjuryAndPropertyDamageMember_5891FAA27E082050BEE5800A78CD4CAD_documentation_en-US" xlink:label="lab_odfl_BodilyInjuryAndPropertyDamageMember_5891FAA27E082050BEE5800A78CD4CAD" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Bodily Injury And Property Damage [Member]</link:label>
    <link:loc xlink:href="odfl-20161231.xsd#odfl_BodilyInjuryAndPropertyDamageMember" xlink:label="loc_odfl_BodilyInjuryAndPropertyDamageMember_5891FAA27E082050BEE5800A78CD4CAD" xlink:type="locator" />
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    <link:label id="lab_odfl_SignificantAccountingPoliciesLineItems_1787E7A67F0758B9D4E8800A78CD5376_terseLabel_en-US" xlink:label="lab_odfl_SignificantAccountingPoliciesLineItems_1787E7A67F0758B9D4E8800A78CD5376" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Significant Accounting Policies [Line Items]</link:label>
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    <link:label id="lab_odfl_SelfinsuredDeductiblePerOccurrence_2C6C41B9D8776F6AE9E2800A78CD8432_terseLabel_en-US" xlink:label="lab_odfl_SelfinsuredDeductiblePerOccurrence_2C6C41B9D8776F6AE9E2800A78CD8432" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Insurance maximum, per occurrence</link:label>
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    <link:label id="lab_odfl_CorridorDeductible_FF7B79AE303C1A614204800A78CD56C6_documentation_en-US" xlink:label="lab_odfl_CorridorDeductible_FF7B79AE303C1A614204800A78CD56C6" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">One-time, aggregate corridor deductible on a claim that reaches an insurance layer.</link:label>
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    <link:label id="lab_odfl_InsuranceLayertoMeetCorridorDeductible_A12F29522CB370EFAF9C800A78CE96D4_documentation_en-US" xlink:label="lab_odfl_InsuranceLayertoMeetCorridorDeductible_A12F29522CB370EFAF9C800A78CE96D4" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Minimum insurance layer prior to meeting the one-time corridor deductible.</link:label>
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    <link:label id="lab_us-gaap_AssetsAbstract_16E02127B30290552E9566BD37345D2E_label_en-US" xlink:label="lab_us-gaap_AssetsAbstract_16E02127B30290552E9566BD37345D2E" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Assets [Abstract]</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2016/elts/us-gaap-2016-01-31.xsd#us-gaap_AssetsAbstract" xlink:label="loc_us-gaap_AssetsAbstract_16E02127B30290552E9566BD37345D2E" xlink:type="locator" />
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    <link:label id="lab_us-gaap_AssetsCurrentAbstract_1B1222A1AF878653528A66BD373466AC_terseLabel_en-US" xlink:label="lab_us-gaap_AssetsCurrentAbstract_1B1222A1AF878653528A66BD373466AC" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Assets, Current [Abstract]</link:label>
    <link:label id="lab_us-gaap_AssetsCurrentAbstract_1B1222A1AF878653528A66BD373466AC_label_en-US" xlink:label="lab_us-gaap_AssetsCurrentAbstract_1B1222A1AF878653528A66BD373466AC" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Assets, Current [Abstract]</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2016/elts/us-gaap-2016-01-31.xsd#us-gaap_AssetsCurrentAbstract" xlink:label="loc_us-gaap_AssetsCurrentAbstract_1B1222A1AF878653528A66BD373466AC" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_AssetsCurrentAbstract_1B1222A1AF878653528A66BD373466AC" xlink:to="lab_us-gaap_AssetsCurrentAbstract_1B1222A1AF878653528A66BD373466AC" xlink:type="arc" />
    <link:label id="lab_us-gaap_CashAndCashEquivalentsAtCarryingValue_31AA07BEE69B7B18B05366BD37340B81_terseLabel_en-US" xlink:label="lab_us-gaap_CashAndCashEquivalentsAtCarryingValue_31AA07BEE69B7B18B05366BD37340B81" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Cash and cash equivalents</link:label>
    <link:label id="lab_us-gaap_CashAndCashEquivalentsAtCarryingValue_31AA07BEE69B7B18B05366BD37340B81_label_en-US" xlink:label="lab_us-gaap_CashAndCashEquivalentsAtCarryingValue_31AA07BEE69B7B18B05366BD37340B81" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Cash and Cash Equivalents, at Carrying Value</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2016/elts/us-gaap-2016-01-31.xsd#us-gaap_CashAndCashEquivalentsAtCarryingValue" xlink:label="loc_us-gaap_CashAndCashEquivalentsAtCarryingValue_31AA07BEE69B7B18B05366BD37340B81" xlink:type="locator" />
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    <link:label id="lab_us-gaap_AccountsReceivableNetCurrent_3762CC74C83C80AF076E66BD37341E5E_verboseLabel_en-US" xlink:label="lab_us-gaap_AccountsReceivableNetCurrent_3762CC74C83C80AF076E66BD37341E5E" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xml:lang="en-US">Customer receivables, less allowances of $8,346 and $8,976, respectively</link:label>
    <link:label id="lab_us-gaap_AccountsReceivableNetCurrent_3762CC74C83C80AF076E66BD37341E5E_label_en-US" xlink:label="lab_us-gaap_AccountsReceivableNetCurrent_3762CC74C83C80AF076E66BD37341E5E" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Accounts Receivable, Net, Current</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2016/elts/us-gaap-2016-01-31.xsd#us-gaap_AccountsReceivableNetCurrent" xlink:label="loc_us-gaap_AccountsReceivableNetCurrent_3762CC74C83C80AF076E66BD37341E5E" xlink:type="locator" />
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    <link:label id="lab_us-gaap_OtherReceivablesNetCurrent_772F6AD02C42A39F782866BD3734B9BE_terseLabel_en-US" xlink:label="lab_us-gaap_OtherReceivablesNetCurrent_772F6AD02C42A39F782866BD3734B9BE" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Other receivables</link:label>
    <link:label id="lab_us-gaap_OtherReceivablesNetCurrent_772F6AD02C42A39F782866BD3734B9BE_label_en-US" xlink:label="lab_us-gaap_OtherReceivablesNetCurrent_772F6AD02C42A39F782866BD3734B9BE" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Other Receivables, Net, Current</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2016/elts/us-gaap-2016-01-31.xsd#us-gaap_OtherReceivablesNetCurrent" xlink:label="loc_us-gaap_OtherReceivablesNetCurrent_772F6AD02C42A39F782866BD3734B9BE" xlink:type="locator" />
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    <link:label id="lab_us-gaap_PrepaidExpenseCurrent_48D4CE392A08881B643B66BD37341BBD_terseLabel_en-US" xlink:label="lab_us-gaap_PrepaidExpenseCurrent_48D4CE392A08881B643B66BD37341BBD" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Prepaid expenses and other current assets</link:label>
    <link:label id="lab_us-gaap_PrepaidExpenseCurrent_48D4CE392A08881B643B66BD37341BBD_label_en-US" xlink:label="lab_us-gaap_PrepaidExpenseCurrent_48D4CE392A08881B643B66BD37341BBD" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Prepaid Expense, Current</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2016/elts/us-gaap-2016-01-31.xsd#us-gaap_PrepaidExpenseCurrent" xlink:label="loc_us-gaap_PrepaidExpenseCurrent_48D4CE392A08881B643B66BD37341BBD" xlink:type="locator" />
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    <link:label id="lab_us-gaap_AssetsCurrent_A1CCEBEAE5C1E30B2BDD66BD37343B8A_totalLabel_en-US" xlink:label="lab_us-gaap_AssetsCurrent_A1CCEBEAE5C1E30B2BDD66BD37343B8A" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:type="resource" xml:lang="en-US">Total current assets</link:label>
    <link:label id="lab_us-gaap_AssetsCurrent_A1CCEBEAE5C1E30B2BDD66BD37343B8A_label_en-US" xlink:label="lab_us-gaap_AssetsCurrent_A1CCEBEAE5C1E30B2BDD66BD37343B8A" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Assets, Current</link:label>
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    <link:label id="lab_us-gaap_PropertyPlantAndEquipmentNetAbstract_F69DFB3FAA517BB7452C66BD37340C87_terseLabel_en-US" xlink:label="lab_us-gaap_PropertyPlantAndEquipmentNetAbstract_F69DFB3FAA517BB7452C66BD37340C87" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Property and equipment</link:label>
    <link:label id="lab_us-gaap_PropertyPlantAndEquipmentNetAbstract_F69DFB3FAA517BB7452C66BD37340C87_label_en-US" xlink:label="lab_us-gaap_PropertyPlantAndEquipmentNetAbstract_F69DFB3FAA517BB7452C66BD37340C87" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Property, Plant and Equipment, Net [Abstract]</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2016/elts/us-gaap-2016-01-31.xsd#us-gaap_PropertyPlantAndEquipmentNetAbstract" xlink:label="loc_us-gaap_PropertyPlantAndEquipmentNetAbstract_F69DFB3FAA517BB7452C66BD37340C87" xlink:type="locator" />
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    <link:label id="lab_us-gaap_MachineryAndEquipmentGross_B4019AC122A0DD19E21566BD3734B497_terseLabel_en-US" xlink:label="lab_us-gaap_MachineryAndEquipmentGross_B4019AC122A0DD19E21566BD3734B497" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Revenue equipment</link:label>
    <link:label id="lab_us-gaap_MachineryAndEquipmentGross_B4019AC122A0DD19E21566BD3734B497_label_en-US" xlink:label="lab_us-gaap_MachineryAndEquipmentGross_B4019AC122A0DD19E21566BD3734B497" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Machinery and Equipment, Gross</link:label>
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    <link:label id="lab_odfl_BuildingsLandAndImprovementsGross_717407A7F75AE78ED51666BD3734CD28_terseLabel_en-US" xlink:label="lab_odfl_BuildingsLandAndImprovementsGross_717407A7F75AE78ED51666BD3734CD28" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Land and structures</link:label>
    <link:label id="lab_odfl_BuildingsLandAndImprovementsGross_717407A7F75AE78ED51666BD3734CD28_label_en-US" xlink:label="lab_odfl_BuildingsLandAndImprovementsGross_717407A7F75AE78ED51666BD3734CD28" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Buildings Land And Improvements Gross</link:label>
    <link:label id="lab_odfl_BuildingsLandAndImprovementsGross_717407A7F75AE78ED51666BD3734CD28_documentation_en-US" xlink:label="lab_odfl_BuildingsLandAndImprovementsGross_717407A7F75AE78ED51666BD3734CD28" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Carrying amount as of the balance sheet date of buildings, land and improvements.</link:label>
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    <link:label id="lab_odfl_FixedAssetsOther_06F42462D19373AB1F0366BD3734A44C_terseLabel_en-US" xlink:label="lab_odfl_FixedAssetsOther_06F42462D19373AB1F0366BD3734A44C" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Other fixed assets</link:label>
    <link:label id="lab_odfl_FixedAssetsOther_06F42462D19373AB1F0366BD3734A44C_label_en-US" xlink:label="lab_odfl_FixedAssetsOther_06F42462D19373AB1F0366BD3734A44C" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Fixed Assets Other</link:label>
    <link:label id="lab_odfl_FixedAssetsOther_06F42462D19373AB1F0366BD3734A44C_documentation_en-US" xlink:label="lab_odfl_FixedAssetsOther_06F42462D19373AB1F0366BD3734A44C" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">This element represents capitalized assets and capitalized leased assets classified as property, plant and equipment, not otherwise defined in the taxonomy.</link:label>
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    <link:label id="lab_us-gaap_LeaseholdImprovementsGross_84186BD255B0B1A1D04E66BD373E2F75_terseLabel_en-US" xlink:label="lab_us-gaap_LeaseholdImprovementsGross_84186BD255B0B1A1D04E66BD373E2F75" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Leasehold improvements</link:label>
    <link:label id="lab_us-gaap_LeaseholdImprovementsGross_84186BD255B0B1A1D04E66BD373E2F75_label_en-US" xlink:label="lab_us-gaap_LeaseholdImprovementsGross_84186BD255B0B1A1D04E66BD373E2F75" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Leasehold Improvements, Gross</link:label>
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    <link:label id="lab_us-gaap_PropertyPlantAndEquipmentGross_E30DEF97F35AD85E304466BD373E0874_totalLabel_en-US" xlink:label="lab_us-gaap_PropertyPlantAndEquipmentGross_E30DEF97F35AD85E304466BD373E0874" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:type="resource" xml:lang="en-US">Total property and equipment</link:label>
    <link:label id="lab_us-gaap_PropertyPlantAndEquipmentGross_E30DEF97F35AD85E304466BD373E0874_label_en-US" xlink:label="lab_us-gaap_PropertyPlantAndEquipmentGross_E30DEF97F35AD85E304466BD373E0874" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Property, Plant and Equipment, Gross</link:label>
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    <link:label id="lab_us-gaap_PropertyPlantAndEquipmentNet_5D42FDADEF6EC38552BB66BD373E0E89_totalLabel_en-US" xlink:label="lab_us-gaap_PropertyPlantAndEquipmentNet_5D42FDADEF6EC38552BB66BD373E0E89" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:type="resource" xml:lang="en-US">Net property and equipment</link:label>
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    <link:label id="lab_us-gaap_IncreaseDecreaseInInsuranceLiabilities_DB755A4F1DF6B5FA5C0F70F1F33A6379_terseLabel_en-US" xlink:label="lab_us-gaap_IncreaseDecreaseInInsuranceLiabilities_DB755A4F1DF6B5FA5C0F70F1F33A6379" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Claims and insurance accruals</link:label>
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    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2016/elts/us-gaap-2016-01-31.xsd#us-gaap_IncreaseDecreaseInInsuranceLiabilities" xlink:label="loc_us-gaap_IncreaseDecreaseInInsuranceLiabilities_DB755A4F1DF6B5FA5C0F70F1F33A6379" xlink:type="locator" />
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    <link:label id="lab_us-gaap_IncreaseDecreaseInAccruedIncomeTaxesPayable_60A77948AABBA40D623C70F1F33AD105_terseLabel_en-US" xlink:label="lab_us-gaap_IncreaseDecreaseInAccruedIncomeTaxesPayable_60A77948AABBA40D623C70F1F33AD105" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Income taxes, net</link:label>
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    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2016/elts/us-gaap-2016-01-31.xsd#us-gaap_IncreaseDecreaseInOtherAccruedLiabilities" xlink:label="loc_us-gaap_IncreaseDecreaseInOtherAccruedLiabilities_B8C5E8B78AF8510DF5F070F1F33A731B" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_IncreaseDecreaseInOtherAccruedLiabilities_B8C5E8B78AF8510DF5F070F1F33A731B" xlink:to="lab_us-gaap_IncreaseDecreaseInOtherAccruedLiabilities_B8C5E8B78AF8510DF5F070F1F33A731B" xlink:type="arc" />
    <link:label id="lab_us-gaap_NetCashProvidedByUsedInOperatingActivities_B0ADF8EEFC21A7286BCE70F1F33AAFB9_totalLabel_en-US" xlink:label="lab_us-gaap_NetCashProvidedByUsedInOperatingActivities_B0ADF8EEFC21A7286BCE70F1F33AAFB9" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:type="resource" xml:lang="en-US">Net cash provided by operating activities</link:label>
    <link:label id="lab_us-gaap_NetCashProvidedByUsedInOperatingActivities_B0ADF8EEFC21A7286BCE70F1F33AAFB9_label_en-US" xlink:label="lab_us-gaap_NetCashProvidedByUsedInOperatingActivities_B0ADF8EEFC21A7286BCE70F1F33AAFB9" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Net Cash Provided by (Used in) Operating Activities</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2016/elts/us-gaap-2016-01-31.xsd#us-gaap_NetCashProvidedByUsedInOperatingActivities" xlink:label="loc_us-gaap_NetCashProvidedByUsedInOperatingActivities_B0ADF8EEFC21A7286BCE70F1F33AAFB9" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_NetCashProvidedByUsedInOperatingActivities_B0ADF8EEFC21A7286BCE70F1F33AAFB9" xlink:to="lab_us-gaap_NetCashProvidedByUsedInOperatingActivities_B0ADF8EEFC21A7286BCE70F1F33AAFB9" xlink:type="arc" />
    <link:label id="lab_us-gaap_NetCashProvidedByUsedInInvestingActivitiesAbstract_D7360C4BFCFEF1CC5EC070F1F33A734F_terseLabel_en-US" xlink:label="lab_us-gaap_NetCashProvidedByUsedInInvestingActivitiesAbstract_D7360C4BFCFEF1CC5EC070F1F33A734F" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Cash flows from investing activities:</link:label>
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    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2016/elts/us-gaap-2016-01-31.xsd#us-gaap_NetCashProvidedByUsedInInvestingActivitiesAbstract" xlink:label="loc_us-gaap_NetCashProvidedByUsedInInvestingActivitiesAbstract_D7360C4BFCFEF1CC5EC070F1F33A734F" xlink:type="locator" />
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    <link:label id="lab_us-gaap_PaymentsToAcquireProductiveAssets_2D90288DA79FB4786A5570F1F33A4171_negatedLabel_en-US" xlink:label="lab_us-gaap_PaymentsToAcquireProductiveAssets_2D90288DA79FB4786A5570F1F33A4171" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:type="resource" xml:lang="en-US">Purchase of property and equipment</link:label>
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    <link:label id="lab_us-gaap_ProceedsFromSaleOfPropertyPlantAndEquipment_765B75699181471E904770F1F33AAF77_terseLabel_en-US" xlink:label="lab_us-gaap_ProceedsFromSaleOfPropertyPlantAndEquipment_765B75699181471E904770F1F33AAF77" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Proceeds from sale of property and equipment</link:label>
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    <link:label id="lab_us-gaap_NetCashProvidedByUsedInInvestingActivities_25E5DC5D40352E5CEE1170F1F33AD961_totalLabel_en-US" xlink:label="lab_us-gaap_NetCashProvidedByUsedInInvestingActivities_25E5DC5D40352E5CEE1170F1F33AD961" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:type="resource" xml:lang="en-US">Net cash used in investing activities</link:label>
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    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2016/elts/us-gaap-2016-01-31.xsd#us-gaap_NetCashProvidedByUsedInInvestingActivities" xlink:label="loc_us-gaap_NetCashProvidedByUsedInInvestingActivities_25E5DC5D40352E5CEE1170F1F33AD961" xlink:type="locator" />
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    <link:label id="lab_us-gaap_NetCashProvidedByUsedInFinancingActivitiesAbstract_F3537C5BF6D1F30594AA70F1F33AF843_terseLabel_en-US" xlink:label="lab_us-gaap_NetCashProvidedByUsedInFinancingActivitiesAbstract_F3537C5BF6D1F30594AA70F1F33AF843" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Cash flows from financing activities:</link:label>
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    <link:label id="lab_us-gaap_RepaymentsOfLongTermDebt_3E8AC36CAA4957EF0CF970F1F33AEA54_negatedLabel_en-US" xlink:label="lab_us-gaap_RepaymentsOfLongTermDebt_3E8AC36CAA4957EF0CF970F1F33AEA54" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:type="resource" xml:lang="en-US">Principal payments under long-term debt agreements</link:label>
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    <link:label id="lab_odfl_LineOfCreditFacilityOriginalBorrowingCapacity_6CE53E5DE8412F2818C68009EBA3EC2C_documentation_en-US" xlink:label="lab_odfl_LineOfCreditFacilityOriginalBorrowingCapacity_6CE53E5DE8412F2818C68009EBA3EC2C" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Amount of original borrowing capacity under the credit facility considering any current restrictions on the amount that could be borrowed (for example, borrowings may be limited by the amount of current assets), but without considering any amounts currently outstanding under the facility.</link:label>
    <link:loc xlink:href="odfl-20161231.xsd#odfl_LineOfCreditFacilityOriginalBorrowingCapacity" xlink:label="loc_odfl_LineOfCreditFacilityOriginalBorrowingCapacity_6CE53E5DE8412F2818C68009EBA3EC2C" xlink:type="locator" />
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    <link:label id="lab_odfl_LineOfCreditFacilityAccordion_4CC55BCDCE1B136F41F68009EBA36087_terseLabel_en-US" xlink:label="lab_odfl_LineOfCreditFacilityAccordion_4CC55BCDCE1B136F41F68009EBA36087" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Line Of Credit Facility Accordion</link:label>
    <link:label id="lab_odfl_LineOfCreditFacilityAccordion_4CC55BCDCE1B136F41F68009EBA36087_label_en-US" xlink:label="lab_odfl_LineOfCreditFacilityAccordion_4CC55BCDCE1B136F41F68009EBA36087" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Line Of Credit Facility Accordion</link:label>
    <link:label id="lab_odfl_LineOfCreditFacilityAccordion_4CC55BCDCE1B136F41F68009EBA36087_documentation_en-US" xlink:label="lab_odfl_LineOfCreditFacilityAccordion_4CC55BCDCE1B136F41F68009EBA36087" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Amount of additional borrowing capacity under an accordion feature within the credit agreement.</link:label>
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    <link:label id="lab_us-gaap_LineOfCreditFacilityMaximumBorrowingCapacity_1494C017DB64762110888009EBA3299C_label_en-US" xlink:label="lab_us-gaap_LineOfCreditFacilityMaximumBorrowingCapacity_1494C017DB64762110888009EBA3299C" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Line of Credit Facility, Maximum Borrowing Capacity</link:label>
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    <link:label id="lab_us-gaap_LineOfCreditFacilityCapacityAvailableForSpecificPurposeOtherThanForTradePurchases_5C1F0C2663E3BAA4FFFC8009EBA31CDF_terseLabel_en-US" xlink:label="lab_us-gaap_LineOfCreditFacilityCapacityAvailableForSpecificPurposeOtherThanForTradePurchases_5C1F0C2663E3BAA4FFFC8009EBA31CDF" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Line of Credit Facility, Capacity Available for Specific Purpose Other than for Trade Purchases</link:label>
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    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2016/elts/us-gaap-2016-01-31.xsd#us-gaap_LineOfCreditFacilityCapacityAvailableForSpecificPurposeOtherThanForTradePurchases" xlink:label="loc_us-gaap_LineOfCreditFacilityCapacityAvailableForSpecificPurposeOtherThanForTradePurchases_5C1F0C2663E3BAA4FFFC8009EBA31CDF" xlink:type="locator" />
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    <link:label id="lab_us-gaap_DebtInstrumentBasisSpreadOnVariableRate1_97CEF8B057E735209F5E8009EBA3B579_terseLabel_en-US" xlink:label="lab_us-gaap_DebtInstrumentBasisSpreadOnVariableRate1_97CEF8B057E735209F5E8009EBA3B579" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Interest Rate Spread added to variable rate</link:label>
    <link:label id="lab_us-gaap_DebtInstrumentBasisSpreadOnVariableRate1_97CEF8B057E735209F5E8009EBA3B579_label_en-US" xlink:label="lab_us-gaap_DebtInstrumentBasisSpreadOnVariableRate1_97CEF8B057E735209F5E8009EBA3B579" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Debt Instrument, Basis Spread on Variable Rate</link:label>
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    <link:label id="lab_odfl_LetterOfCreditFeeInPercentage_EB2589EE3DCB867BF1BD8009EBA33F40_terseLabel_en-US" xlink:label="lab_odfl_LetterOfCreditFeeInPercentage_EB2589EE3DCB867BF1BD8009EBA33F40" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Letter Of Credit Fee In Percentage</link:label>
    <link:label id="lab_odfl_LetterOfCreditFeeInPercentage_EB2589EE3DCB867BF1BD8009EBA33F40_label_en-US" xlink:label="lab_odfl_LetterOfCreditFeeInPercentage_EB2589EE3DCB867BF1BD8009EBA33F40" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Letter Of Credit Fee In Percentage</link:label>
    <link:label id="lab_odfl_LetterOfCreditFeeInPercentage_EB2589EE3DCB867BF1BD8009EBA33F40_documentation_en-US" xlink:label="lab_odfl_LetterOfCreditFeeInPercentage_EB2589EE3DCB867BF1BD8009EBA33F40" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">The effective interest rate during the reporting period on the outstanding letters of credit.</link:label>
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    <link:label id="lab_us-gaap_LineOfCreditFacilityUnusedCapacityCommitmentFeePercentage_4E1522B358980A5DAE1E8009EBA3BF5C_terseLabel_en-US" xlink:label="lab_us-gaap_LineOfCreditFacilityUnusedCapacityCommitmentFeePercentage_4E1522B358980A5DAE1E8009EBA3BF5C" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Line of Credit Facility, Unused Capacity, Commitment Fee Percentage</link:label>
    <link:label id="lab_us-gaap_LineOfCreditFacilityUnusedCapacityCommitmentFeePercentage_4E1522B358980A5DAE1E8009EBA3BF5C_label_en-US" xlink:label="lab_us-gaap_LineOfCreditFacilityUnusedCapacityCommitmentFeePercentage_4E1522B358980A5DAE1E8009EBA3BF5C" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Line of Credit Facility, Unused Capacity, Commitment Fee Percentage</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2016/elts/us-gaap-2016-01-31.xsd#us-gaap_LineOfCreditFacilityUnusedCapacityCommitmentFeePercentage" xlink:label="loc_us-gaap_LineOfCreditFacilityUnusedCapacityCommitmentFeePercentage_4E1522B358980A5DAE1E8009EBA3BF5C" xlink:type="locator" />
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    <link:label id="lab_odfl_AccordionFeatureExercisedDuringthePeriodAmount_2C23843DBBC9251C65EF8009EBA32FAE_terseLabel_en-US" xlink:label="lab_odfl_AccordionFeatureExercisedDuringthePeriodAmount_2C23843DBBC9251C65EF8009EBA32FAE" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Accordion Feature Exercised During the Period Amount</link:label>
    <link:label id="lab_odfl_AccordionFeatureExercisedDuringthePeriodAmount_2C23843DBBC9251C65EF8009EBA32FAE_label_en-US" xlink:label="lab_odfl_AccordionFeatureExercisedDuringthePeriodAmount_2C23843DBBC9251C65EF8009EBA32FAE" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Accordion Feature Exercised During the Period Amount</link:label>
    <link:label id="lab_odfl_AccordionFeatureExercisedDuringthePeriodAmount_2C23843DBBC9251C65EF8009EBA32FAE_documentation_en-US" xlink:label="lab_odfl_AccordionFeatureExercisedDuringthePeriodAmount_2C23843DBBC9251C65EF8009EBA32FAE" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">The amount of additional capacity under the revolving credit agreement added during the period under the accordion feature.</link:label>
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