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
10 February	United Kingdom	Chatham Dockyard	Chatham, Kent	Apollo	Apollo-class cruiser	For Royal Navy.
11 February	United Kingdom	Harland & Wolff	Belfast	Nomadic	Livestock carrier	For White Star Line
26 February	United Kingdom	Portsmouth Dockyard	Portsmouth	Royal Sovereign	Royal Sovereign-class battleship	For Royal Navy
12 March	United Kingdom	Harland & Wolff	Belfast	Tauric	Livestock carrier	For White Star Line
28 March	United Kingdom	Harland & Wolff	Belfast	Magnetic	Tender	For White Star Line
4 April	Germany	Kaiserliche Werft	Kiel	Falke	Bussard-class cruiser	For Imperial German Navy
11 April	United Kingdom	Harland & Wolff	Belfast	Labrador	Passenger ship	For Dominion Steamship Co.[1]
7 May	United Kingdom	Pembroke Dockyard	Pembrokeshire	Empress of India	Royal Sovereign-class battleship	For Royal Navy
9 May	United Kingdom	Harland & Wolff	Belfast	Assaye	Cargo ship	For Elder Dempster.[2]
6 June	United Kingdom	Harland & Wolff	Belfast	Cheshire	Passenger ship	For Bibby Steamship Co.[3]
27 June	United Kingdom	Harland & Wolff	Belfast	Shropshire	Passenger ship	For Bibby Steamship Co.[4]
30 June	Germany	Kaiserliche Werft	Wilhemshaven	Kurfürst Friedrich Wilhelm	Brandenburg-class battleship	For Imperial German Navy
25 July	United Kingdom	Harland & Wolff	Belfast	Lancastrian	Cargo ship	For F. Leyland & Co.[5]
30 July	United Kingdom	Chatham Dockyard	Chatham	Hood	Royal Sovereign-class battleship	For Royal Navy
July	France	Forges et Chantiers de la Méditerranée	Le Havre	Zaragoza	Corvette	Flagship of the Mexican Navy
20 August	United Kingdom	Harland & Wolff	Belfast	Philadelphian	Cargo ship	For F. Leyland & Co.[6]
21 September	Germany	AG Vulcan	Stettin	Brandenburg	Brandenburg-class battleship	For Imperial German Navy
17 October	France	Arsenal de Lorient	Lorient	Brennus	Pre-dreadnought battleship	For French Navy
17 October	United Kingdom	Harland & Wolff	Belfast	Pindari	Cargo ship	For T. & J. Brocklebank.[7]
31 October	United Kingdom	Harland & Wolff	Belfast	Ionia	Cargo ship	For D. & C. McIver.[8]
19 November	United Kingdom	Harland & Wolff	Belfast	Mahratta	Cargo ship	For Brocklebank Line
14 December	Germany	AG Vulcan	Stettin	Weissenburg	Brandenburg-class battleship	For Imperial German Navy
17 December	United Kingdom	Harland & Wolff	Belfast	Massachusetts	Passenger ship	For Baltimore Lighterage Co.[9]
Unknown date	United Kingdom	R. Williamson & Son	Whitehaven	Black Rock	Cargo ship	For private owner.[10]
Unknown date	United Kingdom	Caledon Shipbuilding & Engineering Co. Ltd.	Dundee	Lawhill	Barque	For private owner.[11]
Unknown date	United Kingdom	Ailsa Shipbuilding Co Ltd.	Troon	Ravenswood	Paddle steamer	For P. & A. Campbell.[12]