The list of ship commissionings in 1911 includes a chronological list of ships commissioned in 1911. In cases where no official commissioning ceremony was held, the date of service entry may be used instead.

Date	Operator	Ship	Class and type	Notes
January 11	Royal Navy	Neptune	Neptune-class battleship
January 15	Austro-Hungarian Navy	Radetzky	Radetzky-class battleship
February 24	Royal Navy	Indefatigable	Indefatigable-class battlecruiser
May 16	Royal Hellenic Navy	Georgios Averof	Pisa-class armored cruiser
June 16	Imperial German Navy	Cöln	Kolberg-class cruiser
July 1	Imperial German Navy	Thüringen	Helgoland-class battleship
July 24	French Navy	Danton	Danton-class battleship
July 25	French Navy	Condorcet	Danton-class battleship
July 25	French Navy	Diderot	Danton-class battleship
July 31	Royal Navy	Hercules	Colossus-class battleship
August 1	French Navy	Mirabeau	Danton-class battleship
August 1	Imperial German Navy	Ostfriesland	Helgoland-class battleship
August 5	French Navy	Vergniaud	Danton-class battleship
August 8	Royal Navy	Colossus	Colossus-class battleship
August 23	Imperial German Navy	Helgoland	Helgoland-class battleship
August 30	Imperial German Navy	Moltke	Moltke-class battlecruiser
August 31	United States Navy	Utah	Florida-class battleship
September 5	United States Navy	Florida	Florida-class battleship
November 22	Austro-Hungarian Navy	Zrínyi	Radetzky-class battleship
December 1	Royal Netherlands Navy	O 2	O 2-class submarine	[1]
December 18	French Navy	Voltaire	Danton-class battleship
December 21	Royal Netherlands Navy	Medusa	Hydra-class minelayer	[2]
unknown date	Royal Danish Navy	Absalon	Patrol vessel	[3]