This is a chronological list of ship commissionings occurring in 1906.
| Date | Operator | Ship | Flag | Class and type | Pennant | Other notes |
|---|---|---|---|---|---|---|
| 19 February |  United States Navy | Rhode Island | Virginia-class battleship | BB-17 | ||
| 5 April |  Imperial German Navy | Roon | Roon-class cruiser | |||
| 20 April | Imperial German Navy | Leipzig | Bremen-class cruiser | |||
| 7 May | United States Navy | Virginia | Virginia-class battleship | BB-13 | ||
| 11 May | United States Navy | New Jersey | Virginia-class battleship | BB-16 | ||
| 18 May | Imperial German Navy | Lothringen | Braunschweig-class battleship | |||
| 2 June | United States Navy | Louisiana | Connecticut-class battleship | BB-19 | ||
| 3 August | Imperial German Navy | Deutschland | Deutschland-class battleship | |||
| 8 September |  Royal Navy | Britannia | King Edward VII-class battleship | |||
| 27 September | United States Navy | Georgia | Virginia-class battleship | BB-15 | ||
| 29 September | United States Navy | Connecticut | Connecticut-class battleship | BB-18 | ||
| 6 November | Royal Navy | Africa | King Edward VII-class battleship | |||
| 2 December | Royal Navy | Dreadnought | Dreadnought-class battleship | |||
| 21 December |  Royal Netherlands Navy | O 1 | O 1-class submarine | O 1 | [1] |