# List of ship launches in 1951

The list of ship launches in 1951 includes a chronological list of all ships launched in 1951.
| Date | Country | Builder | Location | Ship | Class / type | Notes |
| 9 January | United Kingdom | Blyth Dry Docks & Shipbuilding Co. Ltd | Blyth, Northumberland | Cuzco | Cargo ship | For Pacific Steam Navigation Co. Ltd. |
| 12 January | United Kingdom | Harland & Wolff | Belfast | Dalfonn | Tanker | For Sigval Bergsen. |
| 24 January | Soviet Union | Zelenodolsk Gorky Plant | Zelenedolsk | BO-339 | Kronshtadt-class submarine chaser | |
| 24 January | Spain | Sociedad Española de Construcción Naval | Ferrol | Audaz | Audaz-class destroyer | For Spanish Navy |
| 27 January | United States | Fore River Shipyard | Quincy, Massachusetts | Northampton | Unique command cruiser | |
| 8 February | United Kingdom | Harland & Wolff | Belfast | Orkdal | Tanker | For Moltzaua & Christensen. |
| 16 February | Soviet Union | Zelenodolsk Gorky Plant | Zelenedolsk | BO-340 | Kronshtadt-class submarine chaser | |
| 2 March | United States | Electric Boat | Groton, Connecticut | K-1 | Barracuda-class submarine | First in class |
| 3 March | Soviet Union | Zelenodolsk Gorky Plant | Zelenedolsk | BO-341 | Kronshtadt-class submarine chaser | |
| 8 March | United Kingdom | John Brown and Company | Clydebank, Scotland | Norfolk Ferry | Train ferry | For British Transport Commission |
| 12 March | United Kingdom | Harland & Wolff | Belfast | Simba | Tug | For East African Railways. |
| 13 March | Soviet Union | Zelenodolsk Gorky Plant | Zelenedolsk | BO-342 | Kronshtadt-class submarine chaser | |
| 21 March | Soviet Union | Zelenodolsk Gorky Plant | Zelenedolsk | BO-343 | Kronshtadt-class submarine chaser | |
| 28 March | United Kingdom | Alexander Stephen and Sons | Glasgow, Scotland | Aureol | Ocean Liner | For Elder Dempster Lines |
| 29 March | Soviet Union | Zelenodolsk Gorky Plant | Zelenedolsk | BO-344 | Kronshtadt-class submarine chaser | |
| 31 March | Soviet Union | Zelenodolsk Gorky Plant | Zelenedolsk | BO-345 | Kronshtadt-class submarine chaser | |
| March | United States | Alabama Drydock and Shipbuilding Company | Mobile, Alabama | OBL Expeditor | Towboat | For Ohio Barge Line Inc. |
| March | United States | Alabama Drydock and Shipbuilding Company | Mobile, Alabama | P.O. 2001 | Tank barge | For Pure Oil Company. |
| 5 April | United Kingdom | Harland & Wolff | Belfast | Rhodesia Castle | Passenger ship | For Union-Castle Line. |
| 6 April | Soviet Union | Zelenodolsk Gorky Plant | Zelenedolsk | BO-346 | Kronshtadt-class submarine chaser | |
| 9 April | United Kingdom | John I. Thornycroft & Company | Southampton, England | Duchess | Daring-class destroyer | |
| April | United States | Alabama Drydock and Shipbuilding Company | Mobile, Alabama | P.O. 2002 | Tank barge | For Pure Oil Company. |
| 2 May | United States | Mare Island Naval Shipyard | Vallejo, California | K-2 | Barracuda-class submarine | |
| 3 May | United Kingdom | Harland & Wolff | Belfast | Setter 7 | Whaler | For United Whalers. |
| 5 May | United Kingdom | Harland & Wolff | Belfast | Bollsta | Tanker | For Fred. Olsen & Co. |
| 22 May | United Kingdom | Harland & Wolff | Belfast | Tank King | Tanker | For Sigurd Herlofsen A/S. |
| 23 May | United Kingdom | Harland & Wolff | Belfast | Nyati | Tug | For East African Railways. |
| 25 May | Soviet Union | Zelenodolsk Gorky Plant | Zelenedolsk | BO-347 | Kronshtadt-class submarine chaser | |
| 27 May | Soviet Union | Zelenodolsk Gorky Plant | Zelenedolsk | BO-348 | Kronshtadt-class submarine chaser | |
| May | United States | Alabama Drydock and Shipbuilding Company | Mobile, Alabama | P.O. 2003 | Tank barge | For Pure Oil Company. |
| May | United States | Alabama Drydock and Shipbuilding Company | Mobile, Alabama | P.O. 2004 | Tank barge | For Pure Oil Company. |
| 7 June | Soviet Union | Zelenodolsk Gorky Plant | Zelenedolsk | BO-349 | Kronshtadt-class submarine chaser | |
| 7 June | United Kingdom | Harland & Wolff | Belfast | Setter 8 | Whaler | For United Whalers. |
| 14 June | United States | Electric Boat | Groton, Connecticut | Trigger | Tang-class submarine | |
| 16 June | Italy | Ansaldo Shipyards | Genoa | Andrea Doria | Ocean liner | For Italian Line |
| 19 June | United Kingdom | Harland & Wolff | Belfast | Port Nelson | Cargo ship | For Port Line. |
| 19 June | United States | Portsmouth Naval Shipyard | Kittery, Maine | Tang | Tang-class submarine | First in class |
| 21 June | United Kingdom | Harland and Wolff | Belfast, Northern Ireland | Kenya Castle | Ocean liner | For Union-Castle Line |
| 21 June | United States | Mare Island Naval Shipyard | Vallejo, California | K-3 | Barracuda-class submarine | |
| 23 June | United States | Newport News Shipbuilding | Newport News, Virginia | United States | Ocean liner | |
| 23 June | Soviet Union | Zelenodolsk Gorky Plant | Zelenedolsk | BO-350 | Kronshtadt-class submarine chaser | |
| 2 July | United Kingdom | Harland & Wolff | Belfast | France Stove | Tanker | For Lorentzen A/S. |
| 9 July | United Kingdom | Harland & Wolff | Belfast | Star 9 | Whaler | For Hvalfinger A/S. |
| 11 July | Soviet Union | Zelenodolsk Gorky Plant | Zelenedolsk | BO-351 | Kronshtadt-class submarine chaser | |
| 27 July | Soviet Union | Zelenodolsk Gorky Plant | Zelenedolsk | BO-353 | Kronshtadt-class submarine chaser | |
| 28 July | Soviet Union | Zelenodolsk Gorky Plant | Zelenedolsk | BO-352 | Kronshtadt-class submarine chaser | |
| 2 August | United Kingdom | Harland & Wolff | Belfast | Eastern Star | Cargo ship | For Australia China Line. |
| 3 August | United Kingdom | Harland & Wolff | Belfast | J. K. Hansen | Whaler | For Union Whaling Co. |
| 6 August | Soviet Union | Zelenodolsk Gorky Plant | Zelenedolsk | BO-354 | Kronshtadt-class submarine chaser | |
| 19 August | Soviet Union | Zelenodolsk Gorky Plant | Zelenedolsk | BO-356 | Kronshtadt-class submarine chaser | |
| 21 August | United States | Electric Boat | Groton, Connecticut | Trout | Tang-class submarine | |
| 23 August | United Kingdom | Harland & Wolff | Belfast | Anders Arvesen | Whaler | For Union Whaling Co. |
| 1 September | Soviet Union | Zelenodolsk Gorky Plant | Zelenedolsk | BO-357 | Kronshtadt-class submarine chaser | |
| 10 September | Soviet Union | Zelenodolsk Gorky Plant | Zelenedolsk | BO-358 | Kronshtadt-class submarine chaser | |
| 15 September | Soviet Union | Zelenodolsk Gorky Plant | Zelenedolsk | BO-359 | Kronshtadt-class submarine chaser | |
| 22 September | Soviet Union | Zelenodolsk Gorky Plant | Zelenedolsk | BO-360 | Kronshtadt-class submarine chaser | |
| 25 September | Soviet Union | Zelenodolsk Gorky Plant | Zelenedolsk | BO-361 | Kronshtadt-class submarine chaser | |
| 30 September | Soviet Union | Zelenodolsk Gorky Plant | Zelenedolsk | BO-362 | Kronshtadt-class submarine chaser | |
| 4 October | Soviet Union | Zelenodolsk Gorky Plant | Zelenedolsk | BO-363 | Kronshtadt-class submarine chaser | |
| 10 October | Soviet Union | Zelenodolsk Gorky Plant | Zelenedolsk | BO-364 | Kronshtadt-class submarine chaser | |
| 11 October | United Kingdom | Harland & Wolff | Belfast | Iliade | Tanker | For Societe Navale Delmas Vieljeux. |
| 16 October | Soviet Union | Zelenodolsk Gorky Plant | Zelenedolsk | BO-365 | Kronshtadt-class submarine chaser | |
| 16 October | United States | Portsmouth Naval Shipyard | Kittery, Maine | Wahoo | Tang-class submarine | |
| 11 November | Soviet Union | Zelenodolsk Gorky Plant | Zelenedolsk | BO-366 | Kronshtadt-class submarine chaser | |
| 29 November | United Kingdom | Harland & Wolff | Belfast | Ebro | Cargo ship | For Royal Mail Line. |
| 29 November | United Kingdom | Harland & Wolff | Belfast | King Malcolm | Cargo ship | For King Line. |
| 30 November | Canada | Canadian Vickers | Montreal, Quebec | St. Laurent | St. Laurent-class destroyer | First in class |
| 3 December | United States | Electric Boat | Groton, Connecticut | Harder | Tang-class submarine | |
| 17 December | Soviet Union | Zelenodolsk Gorky Plant | Zelenedolsk | BO-367 | Kronshtadt-class submarine chaser | |
| 17 December | Soviet Union | Zelenodolsk Gorky Plant | Zelenedolsk | BO-368 | Kronshtadt-class submarine chaser | |
| 17 December | United Kingdom | Harland & Wolff | Belfast | Roonagh Head | Cargo ship | For Ulster Steamship Co. |
| 30 December | Soviet Union | Zelenodolsk Gorky Plant | Zelenedolsk | BO-369 | Kronshtadt-class submarine chaser | |
| 31 December | Soviet Union | Zelenodolsk Gorky Plant | Zelenedolsk | BO-370 | Kronshtadt-class submarine chaser | |
| Unknown date | United Kingdom | J. Bolson & Son Ltd. | Poole | Bournemouth Belle | Motor vessel | For J. Bolson & Son Ltd. |
| Unknown date | United Kingdom | Bay Wharf Construction Co. Ltd. | Greenwich | Chastim | Tug | For Braithwaite & Dean |
| Unknown date | Denmark | Helsingør Skibs og Maskinbyggeri | Helsingør | Saint Germain | Train ferry | For SNCF |
| Unknown date | United States | Alabama Drydock and Shipbuilding Company | Mobile, Alabama | 3 unnamed vessels | Tank barges | For The Texas Company. |
| Unknown date | United States | Alabama Drydock and Shipbuilding Company | Mobile, Alabama | Unnamed | Tank barge | For Belcher Towing Co. Prefixed "Barge No.", likely followed by a number. |