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Document and Entity Information
 6 Months Ended
Dec. 31, 2023
Cover [Abstract]  
Document Type 6-K
Document Period End Date Dec. 31, 2023
Entity File Number 001-37626
Entity Registrant Name Mesoblast Limited
Entity Address, Address Line One Level 38
Entity Address, Address Line Two 55 Collins Street
Entity Address, City or Town Melbourne
Entity Address, Postal Zip Code 3000
Entity Address, Country AU
Entity Central Index Key 0001345099
Current Fiscal Year End Date --06-30
Amendment Flag false