List of ship commissionings in 1978

This is an incomplete list, which may never be able to satisfy particular standards for completeness. You can help by expanding it with reliably sourced entries.

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	Template:M/S	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	Error creating thumbnail: 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