| Date | Country | Builder | Location | Ship | Class / type | Notes |
| 5 January | Germany | Deutsche Werft | Hamburg | Alster | Cargo liner | For Norddeutscher Lloyd |
| 11 January | United Kingdom | Fairfield Shipbuilding and Engineering Company | Govan | El Argentino | Cargo ship | For the Houlder Line |
| 24 January | United Kingdom | Harland & Wolff | Belfast | Dagomba | Cargo ship | For Elder Dempster.[1] |
| 24 January | United Kingdom | John Brown & Company | Clydebank | Duchess of Bedford | Ocean liner | For Canadian Pacific Steamships Ltd |
| 26 January | United Kingdom | Harland & Wolff | Belfast | King Neptune | Cargo ship | For King Line.[2] |
| 10 February | United Kingdom | Harland & Wolff | Belfast | Deal | Ferry | For Southern Railway.[3] |
| 21 February | United Kingdom | Harland & Wolff | Belfast | Punta Benitez | Tanker | For Lago Shipping Co.[4] |
| 21 February | United Kingdom | Harland & Wolff | Belfast | Saugor | Cargo ship | For James Nourse Ltd.[5] |
| 22 February | United Kingdom | Hawthorn, Leslie | Hebburn | Sussex | County-class cruiser | For Royal Navy |
| 23 February | Australia | Cockatoo Docks and Engineering Company | Sydney | Albatross | Seaplane tender | For Royal Australian Navy |
| 8 March | United Kingdom | Harland & Wolff | Belfast | Tia Juana | Tanker | For Lago Shipping Co.[6] |
| 20 March | Japan | Yokohama Shipyards | | Shirayuki | Fubuki-class destroyer | For Imperial Japanese Navy |
| 22 March | United Kingdom | Harland & Wolff | Belfast | King Arthur | Cargo ship | For King Line.[7] |
| 23 March | Japan | Kure Naval Arsenal | Kure | I-56 (I-156) | Kaidai III-type submarine | For Imperial Japanese Navy |
| 24 March | Japan | Mitsubishi Shipyard | Nagasaki | Haguro | Myōkō-class cruiser | For Imperial Japanese Navy |
| 27 March | United Kingdom | Harland & Wolff | Belfast | Hooiberg | Tanker | For Lago Shipping Co.[8] |
| 14 April | Italy | Odero-Terni-Orlando Naval Yard | La Spezia | Enrico Toti | Balilla-class submarine | For Regia Marina |
| 19 April | United Kingdom | Harland & Wolff | Belfast | Delfina Mitre | Train ferry | For Entre Ríos Railway Co.[9] |
| 20 April | France | Brest Naval Yard | Brest | Colbert | Suffren-class cruiser | For Marine Nationale |
| 22 April | Japan | Kawasaki shipyard | Kobe | Ashigara | Myōkō-class cruiser | For Imperial Japanese Navy |
| 23 April | United Kingdom | Harland & Wolff | Belfast | Clydefield | Tanker | For Hunting & Sons.[10] |
| 23 April | United Kingdom | Harland & Wolff | Belfast | Punta Gorda | Tanker | For Lago Shipping Co.[11] |
| 24 April | United Kingdom | Harland & Wolff | Belfast | King Stephen | Cargo ship | For King Line.[12] |
| 3 May | United Kingdom | Harland & Wolff | Belfast | Highland Monarch | Passenger ship | For H. & W. Nelson Ltd. |
| 3 May | United Kingdom | | | Worthing | Passenger ferry | For Southern Railway |
| 5 May | United Kingdom | Chatham Dockyard | Chatham, Kent | Odin | Odin-class submarine | |
| 6 May | Germany | Bremer-Vulkan Shipyards | Bremen | St. Louis | Ocean liner | For Hamburg-America Line |
| 7 May | Canada | Burrard Dry Dock | North Vancouver, British Columbia | St. Roch | Schooner | For Royal Canadian Mounted Police |
| 17 May | United Kingdom | Harland & Wolff | Belfast | Brittany | Cargo ship | For David MacIver & Co.[13] |
| 17 May | United Kingdom | Harland & Wolff | Belfast | Nyanza | Cargo ship | For MacLay & MacIntyre Ltd.[14] |
| 19 May | United Kingdom | Harland & Wolff | Belfast | King William | Cargo ship | For King Line.[15] |
| 22 May | United Kingdom | Harland & Wolff | Belfast | Yamanota | Tanker | For Lago Shipping Co.[16] |
| 23 May | Germany | Kriegsmarinewerft | Wilhelmshaven | Köln | Königsberg-class cruiser (1927) | For Reichsmarine |
| 3 June | France | Société Provençale de Construction Navales | La Ciotat | Éridan | Cargo liner | For Société des Services Contractuels des Messageries Maritimes |
| 14 June | Germany | Schiffbau-Gesellschaft Unterweser | Wesermünde-Lehe | Richard C. Krogmann | Fishing trawler | For Cuxhavener Hochseefischerei AG. |
| 18 June | United Kingdom | John Brown & Company | Clydebank | Duchess of Richmond | Ocean liner | For Canadian Pacific Steamships Ltd |
| 21 June | United Kingdom | Harland & Wolff | Belfast | Highland Chieftain | Passenger ship | For H. & W. Nelson Ltd.[17] |
| 26 June | United Kingdom | Harland & Wolff | Belfast | Centura | Lighter | For Argentine Navigation Co.[18] |
| 26 June | Japan | Uraga Dock Company | Uraga | Miyuki | Fubuki-class destroyer | For Imperial Japanese Navy |
| 3 July | United Kingdom | Harland & Wolff | Belfast | Designer | Cargo ship | For T. & J. Harrison Ltd.[19] |
| 5 July | United Kingdom | Harland & Wolff | Belfast | Cuidad de Salto | Passenger ship | For Argentine Navigation Co.[20] |
| 5 July | United Kingdom | William Beardmore & Company | Dalmuir | Shropshire | County-class cruiser | For Royal Navy |
| 8 July | United Kingdom | Fairfield Shipbuilding & Engineering Co. Ltd | Govan | Norfolk | County-class cruiser | For Royal Navy |
| 10 July | France | Arsenal de Brest | Brest | Pascal | Redoutable-class submarine | For French Navy |
| 10 July | France | Chantiers Naval Français | | Wicher | Wicher-class destroyer | For Marynarka Wojenna Rzeczypospolitej Polskeij |
| 17 July | United Kingdom | Palmers Shipbuilding and Iron Company | Jarrow | York | York-class cruiser | For Royal Navy |
| 18 July | United Kingdom | Isaac J. Abdela & Mitchell (1925) Ltd. | Queensferry | Energie | Tanker | For Medway Oil & Storage Co. Ltd.[21] |
| 18 July | United Kingdom | Swan, Hunter & Wigham Richardson | Wallsend | Port Fairy | cargo ship | For Commonwealth & Dominion Line Ltd |
| 19 July | United Kingdom | Vickers Armstrong | Barrow in Furness | Medway | Submarine depot ship | For Royal Navy |
| 21 July | United Kingdom | John I. Thorneycroft & Company | Woolston | Hyatt | Serrano-class destroyer | For Armada de Chile |
| 2 August | Germany | Deutsche Schiff- und Maschinenbau AG | Bremen | Bremen | Ocean liner | For Norddeutscher Lloyd |
| 15 August | Germany | Blohm + Voss | Hamburg | Europa | | For Norddeutscher Lloyd |
| 16 August | United Kingdom | Harland & Wolff | Belfast | Behar | Cargo ship | For Hain Steamship Co.[22] |
| 19 August | France | Arsenal de Brest | Brest | Pasteur | Redoutable-class submarine | For French Navy |
| 21 August | United Kingdom | Harland & Wolff | Belfast | Kerma | Cargo ship | For Strick Line.[23] |
| 15 September | United Kingdom | Alexander Stephen & Sons | Glasgow | Viceroy of India | Ocean liner | For Peninsular and Oriental Steam Navigation Company |
| 17 September | Germany | Deschimag Seebeckwerke | Wesermünde | Dr. Rudolf Wahrendorff | Fishing trawler | For Grundmann & Gröschel |
| 27 September | Japan | Fujinagata Shipyards | Osaka | Murakumo | Fubuki-class destroyer | |
| 28 September | United Kingdom | John Brown & Company | Clydebank | Duchess of York | Ocean liner | For Canadian Pacific Steamships Ltd |
| 29 September | Japan | Maizuru Naval Arsenal | Maizuru, Kyoto | Hatsuyuki | Fubuki-class destroyer | For Imperial Japanese Navy |
| 1 October | Japan | Kure Naval Arsenal | Kure | I-57 (I-157) | Kaidai III-type submarine | For Imperial Japanese Navy |
| 1 November | United Kingdom | Harland & Wolff | Belfast | Highland Brigade | Passenger ship | For H. & W. Nelson Ltd.[24] |
| 15 November | United Kingdom | Harland & Wolff | Belfast | Celtic Monarch | Cargo ship | For Raeburn & Verel Ltd.[25] |
| 24 November | United States | Bath Iron Works | Bath, Maine | Holy Cross | Trawler | For F J O'Hara & Sons Inc. |
| 28 November | United Kingdom | John I. Thornycroft & Company | Woolston | Aldea | Serrano-class destroyer | For Armada de Chile |
| 29 November | Japan | Uraga Dock Company | Uraga | Uranami | Fubuki-class destroyer | For Imperial Japanese Navy |
| 11 December | United Kingdom | William Beardmore and Company | Glasgow | Olympus | Odin-class submarine | For Royal Navy |
| 12 December | United Kingdom | Harland & Wolff | Belfast | Bhutan | Cargo ship | For Hain Steamship Co.[26] |
| 13 December | United Kingdom | William Denny and Brothers | Dumbarton | Canterbury | Ferry | For Southern Railway. |
| 15 December | United States | Bath Iron Works | Bath, Maine | Georgetown | Trawler | For F J O'Hara & Sons Inc. |
| 17 December | United States | Portsmouth Naval Shipyard | Kittery, Maine | Narwhal | Narwhal-class submarine | For United States Navy |
| 21 December | United Kingdom | Harland & Wolff | Belfast | Idomo | Motor lighter | For Elder Dempster.[27] |
| Unknown date | United Kingdom | Lithgows Ltd. | Port Glasgow | Aelybryn | Cargo ship | For private owner. |
| Unknown date | United Kingdom | Furness Shipbuilding Co Ltd | Haverton Hill-on-Tees | Barnett | McCawley-class attack transport | For the United States Navy |
| Unknown date | United States | Bath Iron Works | Bath, Maine | Boston College | Trawler | |
| Unknown date | Germany | Germainia Werft | Kiel | Coronet | Steam yacht | For Irving T. Bush |
| Unknown date | United Kingdom | Smith's Dock Co | Middlesbrough | Eaglescliffe Hall | cargo ship | For Hall Corporation |
| Unknown date | United Kingdom | W Gray & Co Ltd | West Hartlepool | Egglestone | Cargo ship | |
| Unknown date | United States | Defoe Shipbuilding Co | Bay City, Michigan | Elfrecia | Steam yacht | |
| Unknown date | United Kingdom | William Gray & Co. (1918) Ltd. | West Hartlepool | City of Dieppe | Steamship | For Ellerman Lines. |
| Unknown date | Germany | Flensburger Schiffbau-Gesellschaft | Flensburg | Gemma | Cargo ship | For Holm & Molzen |
| Unknown date | United Kingdom | J L Thompson & Sons Ltd | Sunderland | Goodleigh | Cargo ship | For Dulverton Steamship Co Ltd |
| Unknown date | United States | Spear Engine Works | Norfolk, Virginia | Hydrographer | Survey ship | For United States Coast and Geodetic Survey |
| Unknown date | Netherlands | J. Koster. | Groningen | Meuse | Cargo ship | For private owner. |
| Unknown date | United Kingdom | British Power Boat Company | Southampton | Miss England I | Power boat | For Hubert Scott-Paine |
| Unknown date | Germany | Germania Werft | Kiel | Queen Anne | Motor yacht | For Alexander Dallas Thayer |
| Unknown date | Germany | Bremer Vulkan Schiff- und Maschinenbau | Bremen | Rodi | Cargo ship | For Societa Anonima Adriatica Navigazione. |
| Unknown date | United States | Pusey & Jones | Wilmington, Delaware | Savarona | Steam yacht | For Mrs Thomas S Cadwallader |
| Unknown date | United States | F F Pendleton | Wiscasset, Maine | Spindrift | | |
| Unknown date | United States | Alabama Drydock and Shipbuilding Company | Mobile, Alabama | T.C.I.S.G. No. 5 | Barge | For Tennessee Coal, Iron and Railroad Company.[32] |
| Unknown date | United States | Alabama Drydock and Shipbuilding Company | Mobile, Alabama | T.C.I.S.G. No. 6 | Barge | For Tennessee Coal, Iron and Railroad Company.[32] |
| Unknown date | United States | Alabama Drydock and Shipbuilding Company | Mobile, Alabama | T.C.I.S.G. No. 7 | Barge | For Tennessee Coal, Iron and Railroad Company.[32] |
| Unknown date | United States | Alabama Drydock and Shipbuilding Company | Mobile, Alabama | T.C.I.S.G. No. 8 | Barge | For Tennessee Coal, Iron and Railroad Company.[32] |
| Unknown date | United States | Alabama Drydock and Shipbuilding Company | Mobile, Alabama | T.C.I.S.G. No. 9 | Barge | For Tennessee Coal, Iron and Railroad Company.[32] |
| Unknown date | United States | Bethlehem Shipbuilding | Quincy, Massachusetts | Trimont | | |
| Unknown date | Germany | Deutsche Schiff- und Maschinenbau. | Bremen | Treuenfels | Cargo ship | For Hansa Line. |
| Unknown date | Germany | Blohm & Voss. | Hamburg | Ubena | Passenger ship | For Deutsche East Africa Line. |
| Unknown date | United States | Alabama Drydock and Shipbuilding Company | Mobile, Alabama | WGN 67 | Barge | For Warrior & Gulf Navigation Company.[32] |
| Unknown date | United States | Alabama Drydock and Shipbuilding Company | Mobile, Alabama | WGN 68 | Barge | For Warrior & Gulf Navigation Company.[32] |
| Unknown date | United States | Alabama Drydock and Shipbuilding Company | Mobile, Alabama | WGN 69 | Barge | For Warrior & Gulf Navigation Company.[32] |
| Unknown date | United States | Alabama Drydock and Shipbuilding Company | Mobile, Alabama | WGN 70 | Barge | For Warrior & Gulf Navigation Company.[32] |
| Unknown date | United States | Alabama Drydock and Shipbuilding Company | Mobile, Alabama | WGN 71 | Barge | For Warrior & Gulf Navigation Company.[32] |
| Unknown date | United States | Alabama Drydock and Shipbuilding Company | Mobile, Alabama | WGN 72 | Barge | For Warrior & Gulf Navigation Company.[32] |
| Unknown date | United States | Alabama Drydock and Shipbuilding Company | Mobile, Alabama | WGN 73 | Barge | For Warrior & Gulf Navigation Company.[32] |
| Unknown date | United States | Alabama Drydock and Shipbuilding Company | Mobile, Alabama | WGN 74 | Barge | For Warrior & Gulf Navigation Company.[32] |
| Unknown date | United States | Alabama Drydock and Shipbuilding Company | Mobile, Alabama | WGN 75 | Barge | For Warrior & Gulf Navigation Company.[32] |
| Unknown date | United States | Alabama Drydock and Shipbuilding Company | Mobile, Alabama | WGN 76 | Barge | For Warrior & Gulf Navigation Company.[32] |
| Unknown date | United States | Alabama Drydock and Shipbuilding Company | Mobile, Alabama | WGN 77 | Barge | For Warrior & Gulf Navigation Company.[32] |
| Unknown date | United States | Alabama Drydock and Shipbuilding Company | Mobile, Alabama | WGN 78 | Barge | For Warrior & Gulf Navigation Company.[32] |
| Unknown date | United States | Alabama Drydock and Shipbuilding Company | Mobile, Alabama | WGN 79 | Barge | For Warrior & Gulf Navigation Company.[32] |
| Unknown date | United States | Alabama Drydock and Shipbuilding Company | Mobile, Alabama | WGN 80 | Barge | For Warrior & Gulf Navigation Company.[32] |
| Unknown date | United States | Alabama Drydock and Shipbuilding Company | Mobile, Alabama | WGN 81 | Barge | For Warrior & Gulf Navigation Company.[32] |
| Unknown date | United States | Alabama Drydock and Shipbuilding Company | Mobile, Alabama | WGN 82 | Barge | For Warrior & Gulf Navigation Company.[32] |
| Unknown date | United States | Alabama Drydock and Shipbuilding Company | Mobile, Alabama | WGN 83 | Barge | For Warrior & Gulf Navigation Company.[32] |
| Unknown date | United States | Alabama Drydock and Shipbuilding Company | Mobile, Alabama | WGN 84 | Barge | For Warrior & Gulf Navigation Company.[32] |