The list of ship commissionings in 1925 is a chronological list of ships commissioned in 1925. In cases where no official commissioning ceremony was held, the date of service entry may be used instead.
| Operator | Ship | Class and type | Pennant | Other notes | |
|---|---|---|---|---|---|
| 24 March |  Royal Netherlands Navy | HNLMS K XI | K XI-class submarine | K XI | |
| 11 May | Royal Netherlands Navy | HNLMS Java | Java-class cruiser | ||
| 19 May | Royal Netherlands Navy | HNLMS K XII | K XI-class submarine | K XII | |
| 3 July |  Norway | Dronning Maud | Passenger ship |