The list of ship launches in 1891 includes a chronological list of some ships launched in 1891.
| Date | Country | Builder | Location | Ship | Class / type | Notes | |
|---|---|---|---|---|---|---|---|
| 8 January | Blyth Shipbuilding Co. Ltd | Blyth | Steamship | For W. Todd Moffatt.[1] | |||
| 29 January | Charles Joseph Bigger | Londonderry | Silverstream | Barque | For William Porter Herdman.[2] | ||
| 10 February | Chatham Dockyard | Chatham, Kent | For Royal Navy. | ||||
| 11 February | Harland & Wolff | Belfast | Nomadic | Livestock carrier | For White Star Line | ||
| 26 February | Portsmouth Dockyard | Portsmouth | For Royal Navy | ||||
| 12 March | Harland & Wolff | Belfast | Tauric | Livestock carrier | For White Star Line | ||
| 14 March | W. Allsup & Sons Ltd. | Preston | Cargo ship | For Champion & Co.[3] | |||
| 28 March | Harland & Wolff | Belfast | Magnetic | Tender | For White Star Line | ||
| 4 April | Kaiserliche Werft | Kiel | For Imperial German Navy | ||||
| 9 April | Blyth Shipbuilding Co. Ltd | Blyth | Steamship | For Arrow Shipping Co. Ltd.[4] | |||
| 11 April | Harland & Wolff | Belfast | Passenger ship | For Dominion Steamship Co.[5] | |||
| 21 April | Charles Joseph Bigger | Londonderry | Ferndale | Barque | For Dale Line.[6] | ||
| 23 April | Frederick Braby & Co. Ltd. | Deptford | Europe | Lighter | For B. Jacob & Sons.[7] | ||
| 7 May | Pembroke Dockyard | Pembrokeshire | For Royal Navy | ||||
| 9 May | Harland & Wolff | Belfast | Cargo ship | For Elder Dempster.[8] | |||
| 16 May | Messrs. P. Austin & Son | Sunderland | Caradog | Barque | For Messrs. William Morris & Co.[9] | ||
| May | Brown & Clapson | Barton-upon-Humber | Clytie | Humber Keel | For Codd & Pullen.[10] | ||
| 6 June | Harland & Wolff | Belfast | Passenger ship | For Bibby Steamship Co.[11] | |||
| 8 June | Blyth Shipbuilding Co. Ltd | Blyth | Steamship | For Kilorack Steamship Co. Ltd.[12] | |||
| 15 June | Frederick Braby & Co. Ltd. | Deptford | Asia | Lighter | For B. Jacob & Sons.[13] | ||
| 25 June | Charles Joseph Bigger | Londonderry | Beechdale | Barque | For Dale Line.[14] | ||
| 27 June | Harland & Wolff | Belfast | Passenger ship | For Bibby Steamship Co.[15] | |||
| 30 June | Kaiserliche Werft | Wilhemshaven | For Imperial German Navy | ||||
| 16 July | Frederick Braby & Co. Ltd. | Deptford | Africa | Lighter | For B. Jacob & Sons.[16] | ||
| 25 July | Harland & Wolff | Belfast | Cargo ship | For F. Leyland & Co.[17] | |||
| 30 July | Chatham Dockyard | Chatham | For Royal Navy | ||||
| July | Forges et Chantiers de la Méditerranée | Le Havre | Corvette | Flagship of the Mexican Navy | |||
| 8 August | Charles Joseph Bigger | Londonderry | Parkdale | Barque | For J. Henry Iredale Ltd.[18] | ||
| 11 August | Frederick Braby & Co. Ltd. | Deptford | America | Lighter | For B. Jacob & Sons.[19] | ||
| 18 August | Blyth Shipbuilding Co. Ltd | Blyth | Unnamed | Barge | For Warkworth Harbour Commission.[20] | ||
| 20 August | Harland & Wolff | Belfast | Cargo ship | For F. Leyland & Co.[21] | |||
| 22 August | W. Allsup & Sons Ltd. | Preston | Tug | For Companhia de Materiaes e Melhoramentos da Cidade do Rio de Janeiro.[22] | |||
| 24 August | Blyth Shipbuilding Co. Ltd | Blyth | Steamship | For Whiteleaf Steamship Co. Ltd.[23] | |||
| 21 September | AG Vulcan | Stettin | For Imperial German Navy | ||||
| 17 October | Arsenal de Lorient | Lorient | Pre-dreadnought battleship | For French Navy | |||
| 17 October | Harland & Wolff | Belfast | Cargo ship | For T. & J. Brocklebank.[24] | |||
| 21 October | Charles Joseph Bigger | Londonderry | Mashona | Full-rigged ship | For W. Lowdon & Co.[25] | ||
| 31 October | Harland & Wolff | Belfast | Cargo ship | For D. & C. McIver.[26] | |||
| 2 November | W. Allsup & Sons Ltd. | Preston | Cargo ship | For Joseph J. Crossfield & Sons.[27] | |||
| 19 November | Harland & Wolff | Belfast | Cargo ship | For Brocklebank Line | |||
| 14 December | AG Vulcan | Stettin | For Imperial German Navy | ||||
| 17 December | Harland & Wolff | Belfast | Passenger ship | For Baltimore Lighterage Co.[28] | |||
| Unknown date | J. Allen & Co. | Poole | Alexandra | Yacht | For Frederick Griffin.[29] | ||
| Unknown date | R. Williamson & Son | Whitehaven | Cargo ship | For private owner. | |||
| Unknown date | John Bell | Grimsby | Britannia | Fishing trawler | For John Bell and others.[30] | ||
| Unknown date | Barry Graving Dock & Engineering Company | Barry | Tug | For Barry Railway.[31] | |||
| Unknown date | Charles Joseph Bigger | Londonderry | Craiglands | Barque | For Sailing Ship Craiglands Co. Ltd.[32] | ||
| Unknown date | Bessy & Palmer | Great Yarmouth | Schooner | For Bessey & Palmer.[33] | |||
| Unknown date | W. Allsup & Sons Ltd. | Preston | Steamship | For private owner.[34] | |||
| Unknown date | Caledon Shipbuilding & Engineering Co. Ltd. | Dundee | Lawhill | Barque | For private owner. | ||
| Unknown date | Ailsa Shipbuilding Co Ltd. | Troon | Paddle steamer | For P. & A. Campbell. | |||
| Unknown date | David Banks & Co. | Plymouth | Tug | For John Westcott, Joseph C. Cock and another.[35] |
