List of ship commissionings in 1900
The list of ship commissionings in 1900 is a chronological list of ships commissioned in 1900. In cases where no official commissioning ceremony was held, the date of service entry may be used instead.
| Date | Operator | Ship | Flag | Class and type | Pennant | Other notes |
| 13 February | ' | |||||
| 20 February | ' | BB-5 | ||||
| 20 February | ' | |||||
| 27 March | ' | |||||
| 1 April | ' | Armoured cruiser | ||||
| 15 May | ' | BB-6 | ||||
| 29 May | ' | New Orleans-class protected cruiser | CL-23 | |||
| 25 June | ' | |||||
| 1 September | ' | |||||
| 20 September | ' | |||||
| 16 October | ' | BB-8 | ||||
| 26 October | ' | Destroyer | – | |||
| 1 November |