The list of ship commissionings in 1934 includes a chronological list of all ships commissioned in 1934.
| Operator | Ship | Flag | Class and type | Pennant | Other notes | |
|---|---|---|---|---|---|---|
| 30 January [1] |  Royal Netherlands Navy
|
K XVI | K XIV-class submarine | |||
| 23 March [1] | Royal Netherlands Navy
|
K XVIII | K XIV-class submarine | |||
| 23 March[2] | Luftwaffe | Krischan | Krischan-class seaplane tender | |||
| 3 May [3] |  French Navy
|
Surcouf | Cruiser submarine | N N 3 | ||
| 4 June [4] |  United States Navy
|
Ranger | Light aircraft carrier | CV-4 | ||
| 12 November [5] |  Reichsmarine
|
Admiral Scheer | Deutschland-class cruiser |