List of ship commissionings in 1921

The list of ship commissionings in 1921 includes a chronological list of all ships commissioned in 1921.

	Operator	Ship	Flag	Class and type	Pennant	Other notes
27 April	Royal Netherlands Navy	K IV		K III-class submarine	K IV
11 October	Royal Netherlands Navy	K VI		K V-class submarine	K VI
16 December	United States Navy	Salinas		Patoka-class oiler	AO-19
Unknown	Chilean Navy	Almirante Latorre		Almirante Latorre-class battleship		purchased from the Royal Navy

See also

Ship events in 1921
Ship launches:	1916	1917	1918	1919	1920	1921	1922	1923	1924	1925	1926
Ship commissionings:	1916	1917	1918	1919	1920	1921	1922	1923	1924	1925	1926
Ship decommissionings:	1916	1917	1918	1919	1920	1921	1922	1923	1924	1925	1926
Shipwrecks:	1916	1917	1918	1919	1920	1921	1922	1923	1924	1925	1926