The list of ship launches in 1773 includes a chronological list of some ships launched in 1773.

Date	Country	Builder	Location	Ship	Class	Notes
5 March	Unknown	M. I. Ryabinin	Danube	Vecheslav	Pobedoslav Dunaisakii-class schooner	For Imperial Russian Navy.[1]
14 March	Unknown	M. I. Ryabinin	Danube	Izmail	Pobedoslav Dunaisakii-class schooner	For Imperial Russian Navy.[2]
8 April	Falkland Islands		Port Egmont	Penguin	Survey vessel	For Royal Navy.[3]
14 April	Unknown	M. I. Ryabinin	Danube	Brailov	Pobedoslav Dunaisakii-class schooner	For Imperial Russian Navy.[4]
24 April	Russia	I. V. James	Saint Petersburg	Evangelist Mark	Sixth rate	For Imperial Russian Navy.[5]
28 April	Russia	O. Matveev	Novokhoperskaya	Tretii	Tretii-class frigate	For Imperial Russian Navy.[6]
29 April	Russia	O. Matveev	Novokhoperskaya	Chetvertyi	Tretii-class frigate	For Imperial Russian Navy.[7]
7 May	Great Britain	John Barnard	Harwich	Orpheus	Lowestoffe-class frigate	For Royal Navy.
14 May	Russia	G. Maltsev	Archangelsk	Pavel	Pavel-class frigate	For Imperial Russian Navy.[8]
18 May	Russia	G. Maltsev	Archangelsk	Evstafii	Pavel-class frigate	For Imperial Russian Navy.[9]
18 May	Russia	V. Gunion	Archangelsk	Natalia	Pavel-class frigate	For Imperial Russian Navy.[10]
24 May	Great Britain	John & William Wells	Rotherhithe	Amazon	Amazon-class frigate	For Royal Navy.[11]
4 June	Kingdom of France	Jacques Denys	Dunkerque	L'Espiègle	Lugger	For French Navy.[12]
7 July	Spain	Reales Astilleros de Esteiro	El Ferrol	Santa Maria Magdalena	Fifth rate	For Spanish Navy.[13]
19 July	Republic of Venice	Iseppo Coccon de Francesco	Venice	Minerva	San Michiel Arcangelo-class ship of the line	For Venetian Navy.[14]
20 July	Great Britain	Henry Adams	Bucklers Hard	Greyhound	Mermaid-class frigate	For Royal Navy.
21 July	Russia	V. Gunion	Archangelsk	Legkii	Pavel-class frigate	For Imperial Russian Navy.[15]
9 August	Russia			Vtoraia Ekaterina	Sixth rate	For Imperial Russian Navy.[16]
22 August	Russia	V. A. Selyaninov	Saint Petersburg	Iezekiil	Third rate	For Imperial Russian Navy.[17]
2 September	Great Britain	Thomas Raymond	Northam	Fox	Enterprise-class frigate	For Royal Navy.
17 September	Great Britain	Adams & Barnard	Deptford	Ambuscade	Amazon-class frigate	For Royal Navy.
20 September	Russia	G. Maltsev	Archangelsk	Amerika	Aziia-class ship of the line	For Imperial Russian Navy.[18]
20 September	Russia	G. Maltsev	Archangelsk	Aziia	Aziia-class ship of the line	For Imperial Russian Navy.[19]
1 October	Great Britain	Henry Adams	Bucklers Hard	Triton	Modified Mermaid-class frigate	For Royal Navy.
10 October	Great Britain	Israel Pownoll	Plymouth Dockyard	Conqueror	Royal Oak-class ship of the line	For Royal Navy.[20]
16 October	Great Britain	Bowater	Woolwich	York	East Indiaman	For British East India Company.
18 October	Great Britain		Portsmouth Dockyard	Princess Royal	Barfleur-class ship of the line	For Royal Navy.
2 November	Great Britain	John Henniker & Co	Chatham Dockyard	Siren	Enterprise-class frigate	For Royal Navy.
2 November	Great Britain	Wyatt & Co.	Bucklers Hard	Thetis	Amazon-class frigate	For Royal Navy.[21]
Unknown date	Thirteen Colonies		Norwell, Massachusetts	Columbia	Full-rigged ship	For private owner.
Unknown date	Denmark-Norway	Laurent Barbé	Copenhagen	Elephanten	Ship of the line	For Dano-Norwegian Navy.
Unknown date	Thirteen Colonies			Isabella	Merchantman	For private owner.
Unknown date	India		Bombay	Minerva	Merchantman	For private owner.
Unknown date	Thirteen Colonies		Georgia	Queen	Merchantman	For Private owner.
Unknown date	Spain		Barcelona	San Miguel	Third rate	For Spanish Navy.[22]
Unknown date	Spain	Reales Astilleros de Esteiro	El Ferrol	Santa Ines	Fifth rate	For Spanish Navy.[23]
Unknown date	Thirteen Colonies		Maryland	Tiger	Merchantman	For private owner.
Unknown date	Denmark-Norway			Wagrien	Holsteen-class ship of the line	For Dano-Norwegian Navy.[24]
Unknown date	Dutch Republic		Amsterdam	Zwaluw	Full-rigged ship	For Dutch Navy.[25]