    <SEC-DOCUMENT>0001140361-22-013567-index.html : 20220407
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    <ACCEPTANCE-DATETIME>20220407124247
    ACCESSION NUMBER:		0001140361-22-013567
    CONFORMED SUBMISSION TYPE:	DEF 14A
    PUBLIC DOCUMENT COUNT:		23
    CONFORMED PERIOD OF REPORT:	20220517
    FILED AS OF DATE:		20220407
    DATE AS OF CHANGE:		20220407

    FILER:

    	COMPANY DATA:
    		COMPANY CONFORMED NAME:			NBT BANCORP INC
    		CENTRAL INDEX KEY:			0000790359
    		STANDARD INDUSTRIAL CLASSIFICATION:	NATIONAL COMMERCIAL BANKS [6021]
    		IRS NUMBER:				161268674
    		STATE OF INCORPORATION:			DE
    		FISCAL YEAR END:			1231

    	FILING VALUES:
    		FORM TYPE:		DEF 14A
    		SEC ACT:		1934 Act
    		SEC FILE NUMBER:	000-14703
    		FILM NUMBER:		22813002

    	BUSINESS ADDRESS:
    		STREET 1:		52 S BROAD ST
    		CITY:			NORWICH
    		STATE:			NY
    		ZIP:			13815
    		BUSINESS PHONE:		6073372265

    	MAIL ADDRESS:
    		STREET 1:		52 S. BROAD STREET
    		CITY:			NORWICH
    		STATE:			NY
    		ZIP:			13815
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    <TYPE>DEF 14A
    <SEQUENCE>1
    <FILENAME>ny20002518x1_def14a.htm
    <DESCRIPTION>DEF 14A
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    Document 1 - file: ny20002518x1_def14a.htm

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    <FILENAME>nbt_star.jpg
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    <FILENAME>ny20002518x1_akowalczyk.jpg
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    Document 3 - file: ny20002518x1_akowalczyk.jpg

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    <FILENAME>ny20002518x1_coverx1.jpg
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    Document 4 - file: ny20002518x1_coverx1.jpg

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    <FILENAME>ny20002518x1_hhoeller.jpg
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    Document 5 - file: ny20002518x1_hhoeller.jpg

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    Document 8 - file: ny20002518x1_jbrown.jpg

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    <FILENAME>ny20002518x1_jdouglas.jpg
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    Document 9 - file: ny20002518x1_jdouglas.jpg

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    <FILENAME>ny20002518x1_jmitchell.jpg
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    Document 10 - file: ny20002518x1_jmitchell.jpg

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    Document 11 - file: ny20002518x1_jsantangelo.jpg

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    <FILENAME>ny20002518x1_jwatt.jpg
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    Document 12 - file: ny20002518x1_jwatt.jpg

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    Document 13 - file: ny20002518x1_jwebb.jpg

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    <FILENAME>ny20002518x1_lseifter.jpg
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    Document 14 - file: ny20002518x1_lseifter.jpg

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    <FILENAME>ny20002518x1_mdietrich.jpg
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    Document 15 - file: ny20002518x1_mdietrich.jpg

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    <FILENAME>ny20002518x1_msalanger.jpg
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    Document 16 - file: ny20002518x1_msalanger.jpg

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    <FILENAME>ny20002518x1_pc01.jpg
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    Document 17 - file: ny20002518x1_pc01.jpg

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    Document 18 - file: ny20002518x1_pc02.jpg

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    <FILENAME>ny20002518x1_pcivil.jpg
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    Document 19 - file: ny20002518x1_pcivil.jpg

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    Document 20 - file: ny20002518x1_piechart01x1.jpg

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    Document 21 - file: ny20002518x1_tab1.jpg

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    <FILENAME>ny20002518x1_tdelaney.jpg
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    Document 22 - file: ny20002518x1_tdelaney.jpg

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    <FILENAME>ny20002518x1_vrobinson.jpg
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    Document 23 - file: ny20002518x1_vrobinson.jpg

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