| Date | Country | Builder | Location | Ship | Class / type | Notes |
| 21 January | United Kingdom | Blyth Shipbuilding & Dry Docks Co. Ltd | Blyth | Kauldi | Cargo ship | For Compagnia Naviera Bachi.[1] |
| 23 January | Netherlands | Gusto Shipyard | Schiedam | Douwe Aukes | Douwe Aukes-class minelayer | |
| 13 February | United Kingdom | Cammell Laird | Birkenhead | Maid of Psara | Grain steamer | For the Byron Steamship Company[2] |
| 14 February | Australia | Mort's Dockyard and Engineering Company Limited | Balmain | Baragoola | Ferry | For Port Jackson & Manly Steamship Company |
| 14 February | United Kingdom | Alexander Stephen and Sons | Glasgow, Scotland | Mulbera | Ocean liner | For British-India Steam Navigation Company |
| 15 February | Japan | Sasebo Naval Arsenal | Sasebo, Nagasaki | Yura | Nagara-class cruiser | |
| 16 February | Japan | Mitsubishi Heavy Industries | Nagasaki | Natori | Nagara-class cruiser | |
| 25 February | Japan | Maizuru Naval Arsenal | Maizuru, Kyoto | Numakaze | Minekaze-class destroyer | |
| 2 March | United Kingdom | Harland & Wolff | Belfast | Diogenes | Passenger ship | For Aberdeen Line.[3] |
| 2 March | Japan | Mitsubishi | Kobe | Submarine No. 47 (Ro-58) | Type L3 submarine | For Imperial Japanese Navy |
| 10 March | United Kingdom | Harland & Wolff | Belfast | Eastern Coast | Coaster | For Coast Lines.[4] |
| 14 March | France | Ateliers & Chantiers de la Loire | Saint-Nazaire | Chantilly | Passenger ship | For Compagnie des Française de Navigation à Vapeur Chargeurs Réunis |
| 15 March | United Kingdom | Harland & Wolff | Belfast | Lassell | Cargo ship | For Lamport & Holt.[5] |
| 18 March | United Kingdom | Frederick Braby & Co. Ltd. | Deptford | Westmorland | Tank barge | For Anglo-American Oil Company Ltd.[6] |
| 13 April | Japan | Sasebo Naval Arsenal | Sasebo | Submarine No. 62 (Ro-28) | Kaichū IV-type submarine | For Imperial Japanese Navy |
| 24 April | United Kingdom | Harland & Wolff | Glasgow | Lochgoil | Cargo ship | For Royal Mail Line.[7] |
| 25 April | Japan | Sasebo Naval Arsenal | Sasebo, Nagasaki | Nagara | Nagara-class cruiser | |
| 25 May | United Kingdom | Harland & Wolff | Govan | Adda | Passenger ship | For Elder Dempster.[9] |
| 25 May | Italy | Stabilimento Tecnico Triestino | Trieste | Savoia | Refrigerated cargo ship | For Navigazione Liberia Triestina |
| 29 May | United States | Fore River Shipyard | Quincy, Massachusetts | S-25 | S-class submarine | |
| 29 May | Japan | Kawasaki Heavy Industries | Kobe | Kinu | Nagara-class cruiser | |
| May | United Kingdom | Palmers Shipbuilding and Iron Company | Jarrow | British Corporal | Tanker | For British Tanker Company |
| 3 June | Germany | Bremer Vulkan | Vegesack | Sachsen | Cargo ship | For Hamburg-Amerika Linie.[10] |
| 8 June | United States | New York Shipbuilding | Camden, New Jersey | Kamoi | Seaplane tender | For Imperial Japanese Navy |
| 24 June | Japan | Maizuru Naval Arsenal | Maizuru, Kyoto | Namikaze | Minekaze-class destroyer | |
| 27 June | United States | Bethlehem Shipbuilding Corporation | Quincy, Massachusetts | S-24 | S-class submarine | |
| 28 June | Japan | Mitsubishi | Kobe | Submarine No. 59 (Ro-60) | Type L4 submarine | For Imperial Japanese Navy |
| 29 June | United States | Bethlehem Shipbuilding Corporation | Quincy, Massachusetts | Detroit | Omaha-class cruiser | |
| 29 June | Germany | Reiherstieg Schiffswerfte & Maschinenfabrik | Hamburg | Herrlichkeit | Trawler | For Nordsee Deutsche Hochsee Fischerei Bremen-Cuxhaven AG |
| June | Germany | Deutsche Werft AG | Hamburg | Arcadia | Cargo ship | For Hamburg-Amerika Packetfarht AG |
| 1 July | United Kingdom | Harland & Wolff | Belfast | Calumet | Refrigerated cargo ship | For Elder Dempster.[11] |
| 4 July | United Kingdom | Frederick Braby & Co. Ltd. | Deptford | Sutherland | Tank barge | For Anglo-American Oil Company Ltd.[12] |
| 6 July | United Kingdom | Harland & Wolff | Govan | Volendam | Passenger ship | For Holland America Line. |
| 22 July | Japan | Yokosuka Naval Arsenal | Yokosuka | Submarine No. 58 (Ro-27) | Kaichū IV-type submarine | For Imperial Japanese Navy |
| 8 August | United Kingdom | Harland & Wolff | Belfast | Doric | Passenger ship | For White Star Line. |
| 12 August | Germany | Howaldtswerke | Kiel | Thuringia | Ocean liner | For Hamburg-Amerika Packetfarht AG |
| 22 August | United Kingdom | Harland & Wolff | Belfast | Ayrshire Coast | Coaster | For Coast Lines.[13] |
| 22 August | United States | Bethlehem Shipbuilding Corporation | Quincy, Massachusetts | S-26 | S-class submarine | |
| 24 August | United Kingdom | Armstrong Whitworth | Newcastle-upon-Tyne, England | Mongolia | Ocean liner | For P&O |
| 25 August | United States | Charleston Navy Yard | Charleston, South Carolina | Tulsa | Asheville-class gunboat | |
| 26 August | Germany | Deutsche Werft AG | Finkenwerder | Ambria | Cargo ship | For Hamburg-Amerika Packetfarht AG |
| August | Germany | Atlas Werke | | Botilla Russ | Cargo ship | |
| 15 September | United Kingdom | Frederick Braby & Co. Ltd. | Deptford | Leicester | Tank barge | For Anglo-American Oil Company Ltd.[14] |
| 20 September | United States | Bethlehem Shipbuilding Corporation | Quincy, Massachusetts | S-28 | S-class submarine | |
| 21 September | United Kingdom | Harland & Wolff | Belfast | Invergoil | Tanker | For British Mexican Petroleum Company. |
| 25 September | Japan | Mitsubishi Heavy Industries | Nagasaki | Kamikaze | Kamikaze-class destroyer | |
| 30 September | United Kingdom | Harland & Wolff | Belfast | Lurcher | coastal trading vessel | For Coast Lines.[15] |
| 3 October | Germany | Reiherstieg Schiffswerfte & Maschinenfabrik | Hamburg | Nordland | Fishing trawler | For Deutsche Seefischerei. |
| 18 October | United States | Bethlehem Shipbuilding Corporation | Quincy, Massachusetts | S-27 | S-class submarine | |
| 19 October | United Kingdom | Blyth Shipbuilding & Dry Docks Co. Ltd | Blyth | Rio Claro | Cargo ship | For Thompson Steam Shipping Co. Ltd.[16] |
| 22 October | United Kingdom | Harland & Wolff | Belfast | Drechtdyk | Cargo ship | For Holland America Line.[17] |
| 25 October | United States | Bethlehem Steel Corporation | Quincy, Massachusetts | Raleigh | Omaha-class cruiser | |
| 7 November | United Kingdom | Harland & Wolff | Belfast | Ferry No.6 | Ferry | For Clyde Navigation Co.[18] |
| 7 November | United Kingdom | Harland & Wolff | Belfast | Ferry No.7 | Ferry | For Clyde Navigation Co.[19] |
| 9 November | United States | Bethlehem Shipbuilding Corporation | Quincy, Massachusetts | S-29 | S-class submarine | |
| 18 November | United Kingdom | Harland & Wolff | Belfast | Veendam | Passenger ship | For Holland America Line.[20] |
| 5 December | United Kingdom | Blyth Shipbuilding & Dry Docks Co. Ltd | Blyth | Aydon | Cargo ship | For Aydon Steamship Co. Ltd.[21] |
| 5 December | Japan | Kawasaki | Kobe | Submarine No. 68 (Ro-29) | Kaichū V-type submarine | For Imperial Japanese Navy |
| 7 December | United Kingdom | Harland & Wolff | Belfast | Ediba | Passenger ship | For African Steamship Co.[22] |
| 16 December | Germany | Blohm + Voss | Hamburg | Albert Ballin | Ocean liner | For Hamburg America Line |
| 18 December | Japan | Maizuru Naval Arsenal | Maizuru, Kyoto | Harukaze | Kamikaze-class destroyer | |
| 22 December | Japan | Mitsubishi | Kobe | Submarine No. 57 (Ro-59) | Type L3 submarine | For Imperial Japanese Navy |
| Unknown date | Germany | Blohm + Voss | Hamburg | Adolph Woermann | Passenger ship | For Woermann Linie AG |
| Unknown date | United Kingdom | I. J. Abdela & Mitchell Ltd. | Queensferry | Anchor | Crane ship | For L. Gueret & Co. Ltd.[23] |
| Unknown date | United Kingdom | R. & W. Hawthorn, Leslie & Co. Ltd. | Newcastle upon Tyne | Andania | Steamship | For Cunard Line. |
| Unknown date | United Kingdom | Blythwood Shipbuilding Co. Ltd. | Glasgow | British Architect | Tanker | For British Tanker Co. Ltd. |
| Unknown date | Germany | Vulkan Werke | Hamburg | Cap Norte | Passenger ship | For Hamburg Süd Amerikanische Dampschiffarts-Gesellschaft A/S & Co. KG. |
| Unknown date | Germany | Lindenau & Co, Memeler Schiffswerke | Memel | Cattaro | Cargo ship | For Hamburg Amerikanische Packetfahrt AG |
| Unknown date | Germany | Reiherstieg Schiffswerfte & Maschinenfabrik AG | Hamburg | Cremon | Fishing trawler | |
| Unknown date | United Kingdom | Lithgows Ltd. | Port Glasgow | Dunstaffnage | Cargo ship | For private owner. |
| Unknown date | United Kingdom | William Doxford & Sons Ltd. | Pallion | Ekaren | Cargo ship | For Rederi Transatlantic A/B. |
| Unknown date | Germany | Howaldtswerke | Kiel | Erna | Coaster | For H A Petersen |
| Unknown date | Germany | Stettiner Oderwerke AG | Stettin | Gisela L M Russ | Cargo ship | For Ernst Russ |
| Unknown date | United Kingdom | Ailsa Shipbuilding Co Ltd. | Troon | Glen Gower | Paddle steamer | For P. & A. Campbell. |
| Unknown date | Germany | Reihersteig Schiffswerfte & Maschinenfabrik AG | Hamburg | Herlichkeit | Fishing trawler | For Deutsche Hochseefischerei Bremen-Cuxhaven. |
| Unknown date | Germany | Lübecker Maschinenbau-Gesellschaft | Lübeck | Ingrid Horn | Cargo ship | For H C Horn |
| Unknown date | United Kingdom | Ailsa Shipbuilding Co Ltd. | Troon | Jose Menendes | Cargo liner | For an Argentine owner. |
| Unknown date | Germany | AG Weser | Bremen | Liebenfels | Cargo ship | For Hansa Line. |
| Unknown date | Germany | J Oelkers | Hamburg | Lucy | Sailing barge | |
| Unknown date | Norway | Nylands Verksted | Kristiania | Minna | Cargo ship | For Trelleborgs Ångfartygs Nya AB |
| Unknown date | United Kingdom | Cammell Laird & Co. Ltd. | Birkenhead | Moldavia | Passenger ship | For Peninsular & Oriental Steam Navigation Company. |
| Unknown date | Germany | [Schiffs- und Dockbau Flender | Lübeck | Morea | Cargo ship | For Deutsche Levant Line. |
| Unknown date | United Kingdom | | | Patia | Cargo ship | For Elders & Fyffes Ltd. |
| Unknown date | Germany | Nobiskrug Werft GmbH | Rendsburg | Pinnau | Cargo ship | For Bugsier Reederei & Bergungs AG |
| Unknown date | Germany | F. Krupp AG. | Kiel | Rudolph Albrecht | Tanker | For Max Albrecht Kommandit. |
| Unknown date | United Kingdom | Short Brothers Ltd. | Sunderland | Sandgate Castle | Cargo ship | For Union-Castle Mail Steamship Co. Ltd. |
| Unknown date | Germany | Deutsche Werft | Hamburg | Schwarzwald | Cargo ship | For private owner. |
| Unknown date | United Kingdom | Blyth Shipbuilding & Dry Docks Co. Ltd | Blyth | Shildon | Cargo ship | For Tyneside Line (1920) Ltd.[37] |
| Unknown date | United Kingdom | J. Bolson & Son Ltd. | Poole | Skylark 6 | Passenger launch | For Jake Bolson.[38] |
| Unknown date | United Kingdom | William Adams & Co. | Larne | Stainburn | Coaster | For Stainburn S.S. Co. Ltd.[39] |
| Unknown date | Germany | F Schichau GmbH | Elbing | Tertia | Cargo ship | Flensburger Dampfschiffahrt Gesellschaft von 1869 |
| Unknown date | Belgium | J. Cockerill S.A. | Hoboken | Thysville | Ocean Liner | For Compagnie Belge Maritime du Congo. |
| Unknown date | United Kingdom | Lithgows Ltd. | Port Glasgow | Tjibesar | Cargo ship | For Java-China-Japan Lijn. |
| Unknown date | Germany | Reiherstieg Schiffswerfte & Mashinenfabrik. | Hamburg | Wadai | Passenger ship | For Woermann Linig AG. |
| Unknown date | Germany | Reiherstieg Schiffswerfte & Maschinenfabrik | Hamburg | Wadigo | Cargo ship | For Woermann Linie AG |
| Unknown date | Germany | AG Weser | Bremen | Werra | Cargo ship | For Norddeutscher Lloyd. |
| Unknown date | Germany | Joh. C. Tecklenborg | Wesermünde | Wildenfels | Cargo ship | For Hansa Line. |
| Unknown date | United Kingdom | Frederick Braby & Co. Ltd. | Deptford | Worcester | Tank barge | For Anglo-American Oil Company Ltd.[44] |