# List of ship commissionings in 1945

The list of ship commissionings in 1945 includes a chronological list of ships commissioned in 1945. In cases where no official commissioning ceremony was held, the date of service entry may be used instead.
| Date | Operator | Ship | Class and type |
| 7 January | United States Navy | Dayton | Cleveland-class cruiser |
| 8 January | United States Navy | Amsterdam | Cleveland-class cruiser |
| 10 January | United States Navy | Chicago | Baltimore-class cruiser |
| 15 January | Royal Navy | Vengeance | Colossus-class aircraft carrier |
| 17 January | Royal Navy | Venerable | Colossus-class aircraft carrier |
| 28 January | United States Navy | Antietam | Essex-class aircraft carrier |
| 29 January | United States Navy | Abatan | Pasig-class distilling ship |
| 30 January | United States Navy | LST-1081 | LST-542 class tank landing ship |
| January (unknown date) | French Navy | Dixmude | Charger-class escort carrier |
| 3 February | United States Navy | Tucson | Atlanta-class cruiser |
| 5 February | United States Navy | Gilbert Islands | Commencement Bay-class escort carrier |
| 17 February | United States Navy | St. Paul | Baltimore-class cruiser |
| 1 March | United States Navy | Hugh Purvis | Allen M. Sumner-class destroyer |
| 5 March | United States Navy | Cape Gloucester | Commencement Bay-class escort carrier |
| 9 April | United States Navy | Vella Gulf | Commencement Bay-class escort carrier |
| 16 April | United States Navy | Boxer | Essex-class aircraft carrier |
| 29 April | United States Navy | Bremerton | Baltimore-class cruiser |
| 12 May | United States Navy | Kula Gulf | Commencement Bay-class escort carrier |
| 14 May | United States Navy | Siboney | Commencement Bay-class escort carrier |
| 15 May | United States Navy | Providence | Cleveland-class cruiser |
| 19 May | United States Navy | Salerno Bay | Commencement Bay-class escort carrier |
| 8 June | United States Navy | Columbus | Baltimore-class cruiser |
| 17 June | United States Navy | Little Rock | Cleveland-class cruiser |
| 18 June | United States Navy | Puget Sound | Commencement Bay-class escort carrier |
| 25 June | United States Navy | Portsmouth | Cleveland-class cruiser |
| 1 July | United States Navy | Fall River | Baltimore-class cruiser |
| 16 July | United States Navy | Bairoko | Commencement Bay-class escort carrier |
| 22 July | United States Navy | Los Angeles | Baltimore-class cruiser |
| 28 July | United States Coast Guard | Northwind | Wind-class icebreaker |
| 26 August | United States Navy | Macon | Baltimore-class cruiser |
| 4 September | United States Navy | Helena | Baltimore-class cruiser |
| 4 September | United States Navy | Saidor | Commencement Bay-class escort carrier |
| 10 September | United States Navy | Midway | Midway-class aircraft carrier |
| 16 October | United States Navy | Point Cruz | Commencement Bay-class escort carrier |
| 22 October | United States Navy | Rendova | Commencement Bay-class escort carrier |
| 27 October | United States Navy | Franklin D. Roosevelt | Midway-class aircraft carrier |
| 15 November | United States Navy | Badoeng Strait | Commencement Bay-class escort carrier |
| 4 December | United States Navy | Mindoro | Commencement Bay-class escort carrier |