List of ship launches in 1903

The list of ship launches in 1903 includes a chronological list of some ships launched in 1903.

Date	Country	Builder	Location	Ship	Class / type	Notes
12 January	United Kingdom	Armstrong Whitworth	Elswick	Constitución	Centurion-class battleship	For Armada de Chile, sold to Royal Navy before delivery.
14 January	United States	Union Iron Works	San Francisco, California	Pike	Plunger-class submarine	For United States Navy
15 January	United Kingdom	Portsmouth Dockyard	Portsmouth	Suffolk	Monmouth-class cruiser	For Royal Navy
13 February	United Kingdom	Hawthorn Leslie	Newcastle upon Tyne	Eden	River-class destroyer	For Royal Navy
9 February	Italy	Ansaldo	Genoa	Nishin	Kasuga-class cruiser	For Imperial Japanese Navy
14 February	United Kingdom	Hawthorn Leslie	Newcastle upon Tyne	Derwent	River-class destroyer	For Royal Navy
19 February	United Kingdom	Harland and Wolff	Belfast	Servian	Passenger ship	For Wilson & Furness-Leyland Line
February	United States	Eastern Shipbuilding Company	Groton, Connecticut	Dakota	Passenger ship	For Great Northern Steamship Company
February	United Kingdom	Harland and Wolff	Belfast	Republic	Ocean liner	For White Star Line
7 March	United States	Crescent Shipyard	Elizabethport, New Jersey	Chattanooga	Denver-class cruiser	For United States Navy
9 March	United Kingdom	Vickers	Barrow in Furness	A3	A-class submarine	For Royal Navy
18 March	United Kingdom	Gourlay Brothers	Dundee	Yarmouth	Cargo ship	For Great Eastern Railway
4 April	United Kingdom	William Denny & Bros	Dumbarton	The Queen	Passenger ship	For South Eastern and Chatham Railway
15 April	United Kingdom	Vickers	Barrow in Furness	A2	A-class submarine	For Royal Navy
16 April	United States	Eastern Shipbuilding Company	Groton, Connecticut	SS Minnesota	Passenger ship	For Great Northern Steamship Company
18 April	United States	Newport News Shipbuilding	Newport News, Virginia	West Virginia	Pennsylvania-class cruiser	For United States Navy
25 April	United States	William Cramp and Sons	Philadelphia, Pennsylvania	Colorado	Pennsylvania-class cruiser	For United States Navy
6 May	United States	Jenks Shipbuilding Company		Eastland	Passenger ship	For Michigan Steamship Company
13 May	United Kingdom	Fairfield Shipbuilding and Engineering Company	Govan	Commonwealth	King Edward VII-class battleship	For Royal Navy
20 May	Russian Empire	Baltic Shipyard	Saint Petersburg	Almaz	Cruiser	For Imperial Russian Navy
22 May	United Kingdom	Harland and Wolff	Belfast	Ionic	Athenic-class ocean liner	For White Star Line
26 May	German Empire	Schichau	Danzig	Elsass	Braunschweig-class battleship	For Kaiserliche Marine
2 June	United States	Union Iron Works	Mare Island, California	Tacoma	Denver-class cruiser	For United States Navy
9 June	United Kingdom	Vickers	Barrow in Furness	A4	A-class submarine	For Royal Navy
13 June	United Kingdom	William Denny & Brothers	Dumbarton	Brighton	Passenger ship	For London, Brighton and South Coast Railway
June	German Empire	Kaiserliche Werft	Kiel	Roon	Armoured cruiser	For Kaiserliche Marine
23 July	United States	William R. Trigg Company	Richmond, Virginia	Galveston	Denver-class cruiser	For United States Navy
23 July	United Kingdom	Devonport Dockyard	Devonport	King Edward VII	King Edward VII-class battleship	For Royal Navy
25 July				Mecidiye	Protected cruiser	For Ottoman Navy
25 July	United States	New York Shipbuilding	Camden, New Jersey	Mongolia	Cargo liner	For Pacific Mail Steamship Company
July	Italy	Società Esercizio Baccini	Genoa	Regina Elena	Barque	For Pietro Milesi, Genoa
1 August	Russian Empire	Nevski Yard		Zhemchug	Protected cruiser	For Imperial Russian Navy
11 August	United Kingdom	Fairfield Shipbuilding and Engineering	Govan	Armadale Castle	Passenger ship	For Union-Castle Line
22 August	United States	William Cramp and Sons	Philadelphia, Pennsylvania	Pennsylvania	Pennsylvania-class cruiser	For United States Navy
25 August	United Kingdom	Vickers	Barrow in Furness	Dominion	King Edward VII-class battleship	For Royal Navy
August	Russian Empire	Baltic Shipyard	Saint Petersburg	Slava	Borodino-class battleship	For Imperial Russian Navy
September	Denmark	Burmeister and Wain	Copenhagen	CS Pacific	Cable ship	For Great Northern Telegraph Company
12 September	United States	Newport News Shipbuilding & Drydock Company	Newport News, Virginia	Maryland	Pennsylvania-class cruiser	For United States Navy
18 September	German Empire	Germaniawerft	Kiel	Hessen	Braunschweig-class battleship	For Kaiserliche Marine
24 September	United Kingdom	Armstrong-Whitworth	Elswick	Hampshire	Devonshire-class cruiser	For Royal Navy
1 October	Russian Empire	Nevski Yard		Izumrud	Cruiser	For Imperial Russian Navy
7 October	United Kingdom	William Beardmore and Company	Clydebank	Carnarvon	Devonshire-class cruiser	For Royal Navy
8 October	United Kingdom	John Brown & Company	Clydebank	Antrim	Devonshire-class cruiser	For Royal Navy
10 October	Australia		Bellingen, New South Wales	Alma Doepel	Schooner
30 October	German Empire	AG Vulkan Stettin	Stettin	Preussen	Braunschweig-class battleship	For Kaiserliche Marine
2 November	United States	New York Shipbuilding Co.	Camden, New Jersey	Manchuria	Ocean liner	For Pacific Mail Steamship Co.
2 November	Japan	Yokosuka Naval Arsenal	Yokosuka, Kanagawa	Otowa	Cruiser	For Imperial Japanese Navy
21 November	United Kingdom	Harland and Wolff	Belfast	Baltic	Ocean liner	For White Star Line
17 December	United Kingdom	Fairfield Shipbuilding and Engineering Company	Govan	Durham Castle	Ocean liner	For Union-Castle Line
19 December	United Kingdom	John Brown & Company	Clydebank	Hindustan	King Edward VII-class battleship	For Royal Navy
December				Sankt Georg	Armoured cruiser	For Austro-Hungarian Navy