List of ship commissionings in 1978
The list of ship commissionings in 1978 includes a chronological list of all ships commissioned in 1978.
| Operator | Ship | Flag | Class and type | Pennant | Other notes | |
|---|---|---|---|---|---|---|
| 9 January | Birka Line | Prinsessan | Finland | Ferry | Former Finnhansa with Finnlines | |
| 16 January | Sessan Linjen | Fennia | Finland | Ferry | Chartered from Svea Line (Finland) | |
| February | Kefalliniki Sa | Ainos | Greece | Ferry | Ex-Manic with La Traverse Nord-Sud Ltd | |
| 4 March | United States Navy | Oldendorf | Spruance-class destroyer | DD-972 | ||
| 11 March | United States Navy | Merrill | Spruance-class destroyer | DD-976 | ||
| 11 March | United States Navy | Cincinnati | Los Angeles-class submarine | SSN-693 | ||
| 15 March | Imperial Iranian Navy | Khadang | Kaman-class fast attack craft | P223 | ||
| 23 March | Imperial Iranian Navy | Joshan | Kaman-class fast attack craft | P225 | ||
| 31 March | Imperial Iranian Navy | Paykan | Kaman-class fast attack craft | P224 | ||
| 31 March | Imperial Iranian Navy | Falakhon | Kaman-class fast attack craft | P226 | ||
| 31 March | Imperial Iranian Navy | Shamshir | Kaman-class fast attack craft | P227 | ||
| 3 April | Minoan Lines | Knossos | Greece | Ferry | Former Saga with Swedish Lloyd | |
| 24 April | Svea Line (Finland) | Fennia | Finland | Ferry | In Silja Line traffic | |
| 10 May | Polferries | Rogalin | Poland | Ferry | Ex-Aallotar chartered by Polferries from Effoa | |
| 13 May | DFDS Seaways | Dana Anglia | Denmark | Ferry | ||
| 20 May | United States Navy | John Young | Spruance-class destroyer | DD-973 | ||
| 3 June | United States Navy | Briscoe | Spruance-class destroyer | DD-977 | ||
| 9 June | P&O Normandy Ferries | nf Tiger | United Kingdom | Ferry | Ex-Katteget with Jydsk Færgefart A/S | |
| 5 August | United States Navy | Mississippi | Virginia-class cruiser | CGN-40 | ||
| 5 August | United States Navy | Comte de Grasse | Spruance-class destroyer | DD-974 | ||
| 19 August | United States Navy | Stump | Spruance-class destroyer | DD-978 | ||
| 22 August | Imperial Iranian Navy | Gorz | Kaman-class fast attack craft | P228 | ||
| 1 September | Stena Line | Stena Oceanica | Sweden | Ferry | Former Patricia with Swedish Lloyd. Heavily rebuilt before entered service. | |
| 26 October | Royal Netherlands Navy | Kortenaer | Kortenaer-class frigate | F807 | ||
| 11 September | Imperial Iranian Navy | Gardouneh | Kaman-class fast attack craft | P229 | ||
| 23 September | United States Navy | Belleau Wood | Tarawa-class amphibious assault ship | LHA-3 | ||
| 14 October | United States Navy | Conolly | Spruance-class destroyer | DD-979 | ||
| 21 October | United States Navy | Arkansas | Virginia-class cruiser | CGN-41 | ||
| 9 November | Stena Line | Stena Baltica | Sweden | Ferry | Former Peer Günt with Aarhus-Oslo Linie | |
| 16 December | United States Navy | Moosbrugger | Spruance-class destroyer | DD-980 |