List of submarine classes of the Royal Navy explained

This is a list of submarine classes of the Royal Navy of the United Kingdom. Dates of construction given.

Petrol-electric

!!No.!First ship laid down!Last ship commissioned!Notes
	5	HMS Holland 12 October 1901	HMS Holland 51902	First submarines of the Royal Navy
	13	HMS A119 February 1902	HMS A1322 June 1908	Royal Navy's first class of British-designed submarines
	11	HMS B125 October 1904	HMS B111906
C class	38	HMS C113 November 1905	HMS C3810 February 1910	Last class of petrol powered submarines of the Royal Navy

D class — 8 boats, 1908–1912
E class — 58 boats, 1912–1916
F class — 3 boats, 1913–1917
S class — 3 boats, 1914–1915
V class — 4 boats, 1914–1915
W class — 4 boats, 1914–1915
G class — 14 boats, 1915–1917
H class — 44 boats, 1915–1919
J class — 7 boats, 1915–1917
L class — 34 boats, 1917–1919
M class — 3 boats, 1917–1918
Nautilus class — 1 boat, 1917
R class — 12 boats, 1918
— 1 boat, 1921
— 9 boats 1926–29 (subclasses Oberon 1 boat, Oxley 2 boats, Odin 6 boats)
— 6 boats, 1929
— 4 boats, 1930
S class — 62 boats (subclasses Swordfish 4, Shark 8, Seraph 33, Subtle 17), 1931–1945
Thames class — 3 boats, 1932
— 6 boats, 1932–1938
T class — 52 boats (subclasses Triton 15, Tempest 15, Taciturn 22), 1937–1945
Undine class — 3 boats, 1937–1938
P611 class — 4 boats, 1940
Umpire class — 37 boats, 1940–1943
Vampire class — 22 boats, 1943–1944
— 16 boats, 1945–1947
— 2 boats, 1954–1955
— 4 boats, 1954–1955
Porpoise class — 8 boats, 1956–1959
— 13 boats, 1959–1966
— 4 boats, 1986–1992