| | Country | Builder | Location | Ship | Class | Notes |
| 5 January | United States | Bethlehem Shipbuilding Corporation | Quincy, Massachusetts | S-47 | S-class submarine | For United States Navy. |
| 10 January | United Kingdom | Harland & Wolff | Belfast | Minnetonka | Passenger ship | For Atlantic Transport Line.[1] |
| 19 January | United Kingdom | Harland & Wolff | Belfast | Luxmi | Passenger ship | For Bank Line.[2] |
| 22 January | United Kingdom | Harland & Wolff | Belfast | Cedarton | Cargo ship | For Matthews Steamship Co.[3] |
| 22 January | United Kingdom | Blyth Shipbuilding & Dry Docks Co. Ltd | Blyth | Ornais | Cargo ship | For Paul Duval.[4] |
| 24 January | United Kingdom | Harland & Wolff | Belfast | Glenshiel | Cargo ship | For Glen Line.[5] |
| 24 January | Japan | Mitsubishi | Kobe | Submarine No. 84 (Ro-63) | Type L4 submarine | For Imperial Japanese Navy |
| 5 February | United Kingdom | Vickers Ltd | Barrow-in-Furness | Dashwood | Collier | For Wm. France, Fenwick & Co. Ltd. |
| 6 February | United Kingdom | Swan, Hunter & Wigham Richardson | Wallsend-on-Tyne | Aurania | Ocean liner | For Cunard Line |
| 8 February | United Kingdom | Harland & Wolff | Belfast | Cable Enterprise | Cable layer | For Western Telegraph Co.[6] |
| 21 February | United Kingdom | Amble Shipbuilding Co. Ltd. | Amble | A.P.O.C No. 13 | Oil barge | For Anglo-Persian Oil Co. Ltd.[7] |
| 21 February | United Kingdom | Harland & Wolff | Belfast | Birchton | Cargo ship | For Matthews Steamship Co. |
| 23 February | United Kingdom | Cammell Laird | Birkenhead | De Grasse | Ocean liner | For Compagnie Générale Transatlantique |
| 15 March | Japan | Maizuru Naval Arsenal | Maizuru, Kyoto | Hatakaze | Kamikaze-class destroyer | For Imperial Japanese Navy. |
| 21 March | France | Arsenal de Lorient | | La Motte-Picquet | Duguay-Trouin-class cruiser | For French Navy. |
| 22 March | United Kingdom | Harland & Wolff | Belfast | Cariboo | Refrigerated cargo ship | For Elder Dempster.[8] |
| 24 March | United Kingdom | Harland & Wolff | Belfast | Inverbank | Cargo ship | For Bank Line.[9] |
| 25 March | United Kingdom | Vickers Ltd | Barrow-in-Furness | Glanrhyd | Collier | For Harries Bros. & Co. |
| 17 April | United States | William Cramp & Sons | Philadelphia, Pennsylvania | Memphis | Omaha-class cruiser | For United States Navy. |
| 21 April | Japan | Fujinagata Shipyards | Osaka | Asanagi | Kamikaze-class destroyer | For Imperial Japanese Navy. |
| 22 April | United Kingdom | Amble Shipbuilding Co. Ltd. | Amble | Khuzistan | Cargo ship | For British Tanker Co. Ltd.[10] |
| 23 April | United Kingdom | Harland & Wolff | Belfast | Glenbank | Cargo ship | For Bank Line.[11] |
| 23 April | United Kingdom | Ailsa Shipbuilding Company | Troon | Medway Queen | Paddle steamer | For New Medway Steam Packet Company |
| 23 April | Japan | Sasebo Naval Arsenal | Sasebo, Nagasaki | Yūnagi | Kamikaze-class destroyer | For Imperial Japanese Navy. |
| 2 May | United Kingdom | William Denny and Brothers | Dumbarton, Scotland | Dinard | Ferry | |
| 2 May | United Kingdom | Blyth Shipbuilding & Dry Docks Co. Ltd | Blyth | Gallium | Cargo ship | For A. Lemoine et Fils.[12] |
| 2 May | United Kingdom | J I Thornycroft & Co Ltd | Woolston | Jamnagar | Coaster | For The Maharaja Jam Sahib of Nawanagar |
| 3 May | United States | Los Angeles Shipbuilding and Drydock | San Pedro, California | Catalina | Passenger ship | For William Wrigley Jr. |
| 19 May | United Kingdom | Barclay, Curle & Co Ltd | Glasgow | Takliwa | Cargo liner | For British India Steam Navigation Co Ltd. |
| 20 May | United Kingdom | Vickers Ltd | Barrow-in-Furness | Orama | Cargo liner | For Orient Steam Navigation Company. |
| 21 May | France | Arsenal de Brest | Brest | Primauguet | Duguay-Trouin-class cruiser | For French Navy. |
| 2 June | United Kingdom | Harland & Wolff | Belfast | Birchbank | Cargo ship | For Bank Line.[13] |
| 3 June | United Kingdom | D. and W. Henderson and Company | Glasgow | Tonbridge | Cargo ship | For Southern Railway |
| 17 June | United Kingdom | Harland & Wolff | Belfast | Minster | Ferry | For Southern Railway.[14] |
| 17 June | United Kingdom | Blyth Shipbuilding & Dry Docks Co. Ltd | Blyth | Rio Dorado | Cargo ship | For Thompson Steam Shipping Co. Ltd.[15] |
| 18 June | United Kingdom | Vickers Limited | Barrow in Furness | Adventure | Minelaying cruiser | For Royal Navy. |
| 18 June | United Kingdom | Scotts Shipbuilding and Engineering Company | Greenock | Hector | Cargo liner | For Ocean Steamship Co Ltd |
| 1 July | United Kingdom | Harland & Wolff | Belfast | Papuan Chief | Cargo ship | For Steamship Trading Co.[16] |
| 2 July | United Kingdom | Harland & Wolff | Belfast | Asuka Maru | Cargo ship | For Nippon Yusen Kaisha Line.[17] |
| 3 July | United Kingdom | Blyth Shipbuilding & Dry Docks Co. Ltd | Blyth | Tullochmoor | Cargo ship | For Moor Line Ltd.[18] |
| 7 July | United Kingdom | Harland & Wolff | Belfast | Cedarbank | Cargo ship | For Bank Line.[19] |
| 17 July | United States | Portsmouth Naval Shipyard | Kittery, Maine | V-1 | Barracuda-class submarine | For United States Navy. |
| 21 July | United Kingdom | Blyth Shipbuilding & Dry Docks Co. Ltd | Blyth | Sheaf Crest | Cargo ship | For Sheaf Steam Shipping Co. Ltd.[20] |
| 19 August | Japan | Mitsubishi | Kobe | Submarine No. 79 (Ro-64) | Type L4 submarine | For Imperial Japanese Navy. |
| 3 September | United Kingdom | Harland & Wolff | Belfast | Comliebank | Cargo ship | For Bank Line.[21] |
| 3 September | United Kingdom | Harland & Wolff | Belfast | Elmworth | Cargo ship | For R. S. Dalgleish Ltd.[22] |
| 11 September | United Kingdom | Harland & Wolff | Belfast | Statendam | Passenger ship | For Holland America Line.[23] |
| 26 September | United Kingdom | Harland & Wolff | Belfast | Procris | Cargo ship | For J. & P. Hutchinson Ltd.[24] |
| 29 September | France | | Saint Nazaire | Léopard | Chacal-class destroyer | For French Navy. |
| 30 September | United Kingdom | Harland & Wolff | Belfast | Inverglass | Tanker | For British Mexican Petroleum Company.[25] |
| September | United Kingdom | John Brown & Company | Clydebank | Princess Kathleen | Cargo liner | For Canadian Pacific Steamships |
| September | Germany | G. Seebeck AG | Wesermünde | Rosemarie | Fishing trawler | For Hochseefischerei J. Wieting AG |
| 1 October | United Kingdom | Blyth Shipbuilding & Dry Docks Co. Ltd | Blyth | Uskmoor | Cargo ship | For Moor Line Ltd.[26] |
| 13 October | United Kingdom | Harland & Wolff | Belfast | Clydebank | Cargo ship | For Bank Line.[27] |
| 13 October | United Kingdom | Harland & Wolff | Belfast | Redline No.1 | Tanker | For British Mexican Petroleum Company.[28] |
| 16 October | United Kingdom | Harland & Wolff | Govan | Razmak | Passenger ship | For Peninsular and Oriental Steam Navigation Company.[29] |
| 28 October | Germany | J. C. Tecklenborg AG | Wesermünde | Arthur Duncker | Fishing trawler | For Kämpf & Meyer. |
| 28 October | United Kingdom | Blyth Shipbuilding & Dry Docks Co. Ltd | Blyth | Sheaf Water | Cargo ship | For Sheaf Steam Shipping Co. Ltd.[30] |
| 15 November | Germany | J. C. Tecklenborg AG | Wesermünde | Fritz Reiser | Fishing trawler | For Kämpf & Meyer. |
| 25 November | United Kingdom | Harland & Wolff | Belfast | Fendris | Cargo ship | For J. & P. Hutchinson Ltd.[31] |
| 26 November | United Kingdom | Harland & Wolff | Belfast | Oakworth | Cargo ship | For R. S. Dalgleish Ltd.[32] |
| 9 December | United Kingdom | Harland & Wolff | Belfast | Thistleros | Cargo ship | For Allan Black & Co.[33] |
| 5 December | Canada | Saint John Shipbuilding | Saint John, New Brunswick | Kipawo | Ferry | First ship built by the yard. For Dominion Atlantic Railway |
| 10 December | Australia | Cockatoo Island Dockyard | Sydney | Cape Leeuwin | Lighthouse tender | For Queensland Department of Commerce |
| 14 October | United Kingdom | Fairfield Shipbuilding and Engineering Company | Govan | Letitia | Ocean liner | For Anchor-Donaldson Ltd |
| 27 November | Japan | Uraga Dock Company | Uraga | Oite | Kamikaze-class destroyer | For Imperial Japanese Navy. |
| 6 December | France | Chantiers Navals Français | Caen | Ouragan | Bourrasque-class destroyer | For French Navy. |
| 27 December | United States | Portsmouth Naval Shipyard | Kittery, Maine | V-2 | Barracuda-class submarine | For United States Navy. |
| 28 December | Italy | Ansaldo | La Spezia | Leonardo da Vinci | Ocean liner | For Società di Navigazione Transatlantica |
| 2nd Quarter | United Kingdom | Amble Shipbuilding Co. Ltd. | Amble | Cory Oil No. 1 | Steam tank barge | For Cory Bros. & Co. Ltd.[34] |
| 2nd Quarter | United Kingdom | Amble Shipbuilding Co. Ltd. | Amble | Cory Oil No. 2 | Steam tank barge | For Cory Bros. & Co. Ltd.[35] |
| 4th Quarter | United Kingdom | Amble Shipbuilding Co. Ltd. | Amble | Roger Beck | Pilot boat | For Swansea Pilot Boat Co. Ltd.[36] |
| Unknown date | United States | | | Alexander Hamilton | Steamship | For Hudson River Day Line |
| Unknown date | United Kingdom | Barclay, Curle & Co. Ltd. | Glasgow | Algerian | Steamship | For Ellerman & Papayanni Lines Ltd. |
| Unknown date | Germany | Neptun AG | Rostock | Alk | Cargo ship | For Roland Linie AG |
| Unknown date | United Kingdom | Palmers Shipbuilding and Iron Company | Jarrow | Antenor | Ocean liner | For Alfred Holt and Company |
| Unknown date | United Kingdom | Scotts Shipbuilding and Engineering Company | Greenock | Centaur | Cargo liner | For Alfred Holt and Company |
| Unknown date | United Kingdom | Workman, Clark & Co Ltd | Belfast | City of Venice | Passenger ship | For Ellerman Lines |
| Unknown date | United Kingdom | Irvine's Shipbuilding & Dry Dock Co Ltd | West Hartlepool | Corinthic | Cargo ship | For W H Cockerline & Co Ltd, Hull |
| Unknown date | United States | American Ship Building Company | Lorain, Ohio | Greater Buffalo | Paddlewheeler | For Detroit and Cleveland Navigation Company |
| Unknown date | United States | Consolidated Shipbuilding Corp | Morris Heights, New York | Janey III | Yacht | For Clifford C Hemphill |
| Unknown date | United Kingdom | Furness Shipbuilding | Haverton Hill-on-Tees | Kamloops | Lake freighter | For Canada Steamship Lines |
| Unknown date | United Kingdom | Philip and Son | Dartmouth | Kingswear Castle | Paddle steamer | For Great Western Railway |
| Unknown date | Germany | AG Weser | Bremen | Klio | Cargo ship | For Neptun Line |
| Unknown date | United Kingdom | | | Levenwood | Coaster | For Joseph Constantine & Co Ltd |
| Unknown date | United Kingdom | I. J. Abdela & Mitchell Ltd. | Queensferry | Menna | Paddle steamer | For Mayor, Aldermen and Burgesses of the Borough of Carnarvon.[38] |
| Unknown date | United Kingdom | I. J. Abdela & Mitchell Ltd. | Queensferry | Penelope Paul | Barge | For Baul Bros. Ltd.[39] |
| Unknown date | United Kingdom | Harland and Wolff | Greenock | Razmak | Passenger ship | For Peninsular and Oriental Steam Navigation Company |
| Unknown date | Denmark | Burmeister & Wain Maskin og Skibsbyggeri | Copenhagen | Rigel | Cargo ship | For Det Bergenske Dampskibsselskab |
| Unknown date | United Kingdom | Irvines Shipbuilding & Drydock Co. Ltd. | West Hartlepool | Salmonpool | Cargo ship | For Sir R. Ropner & Sons. |
| Unknown date | Italy | Stabilimento Tecnico Triestino. | Trieste | Salvore | Cargo ship | For private owner. |
| Unknown date | United Kingdom | J I Thornycroft & Co Ltd | Woolston | Satellite | Tender | For Trinity House |
| Unknown date | United Kingdom | Cochrane & Son Ltd. | Selby | Seaman | Tug | For United Towing Co. Ltd. |
| Unknown date | United States | Alabama Drydock and Shipbuilding Company | Mobile, Alabama | T.C.I. No. 10 | Barge | For Tennessee Coal, Iron and Railroad Company.[44] |
| Unknown date | United States | Alabama Drydock and Shipbuilding Company | Mobile, Alabama | T.C.I. No. 11 | Barge | For Tennessee Coal, Iron and Railroad Company.[44] |
| Unknown date | United States | Alabama Drydock and Shipbuilding Company | Mobile, Alabama | T.C.I. No. 12 | Barge | For Tennessee Coal, Iron and Railroad Company.[44] |
| Unknown date | United States | Alabama Drydock and Shipbuilding Company | Mobile, Alabama | T.C.I. No. 13 | Barge | For Tennessee Coal, Iron and Railroad Company.[44] |
| Unknown date | United States | Alabama Drydock and Shipbuilding Company | Mobile, Alabama | T.C.I. No. 14 | Barge | For Tennessee Coal, Iron and Railroad Company.[44] |
| Unknown date | United States | Alabama Drydock and Shipbuilding Company | Mobile, Alabama | T.C.I. No. 15 | Barge | For Tennessee Coal, Iron and Railroad Company.[44] |
| Unknown date | United States | Alabama Drydock and Shipbuilding Company | Mobile, Alabama | T.C.I. No. 16 | Barge | For Tennessee Coal, Iron and Railroad Company.[44] |
| Unknown date | United States | Alabama Drydock and Shipbuilding Company | Mobile, Alabama | T.C.I. No. 17 | Barge | For Tennessee Coal, Iron and Railroad Company.[44] |
| Unknown date | United Kingdom | Blyth Shipbuilding & Drydock Co. Ltd. | Blyth | Tullochmoor | Cargo ship | For private owner. |
| Unknown date | United States | New Jersey Transportation & Drydock Co | Wilmington, Delaware | Yale | Passenger ship | |
| Unknown date | United States | | | Zodiac | Schooner | For William H. Hand, Jr. |