B-class submarine

B-class submarine may refer to the following

• British B-class submarine, a class of eleven submarines launched in 1904–1906 for the British Royal Navy
• The Norwegian B-class submarine, a class of six Norwegian submarines built from 1922 to 1929
• The Spanish B-class submarine, a class of six Spanish submarines launched in 1922–1925
• The United States B-class submarine, a class of three submarines launched in 1907
• The Japanese Type B submarine, a class of submarine in the Imperial Japanese Navy (IJN) which served during World War II

This disambiguation page lists articles associated with the title B-class submarine.
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