The Hajen class, also known as the Hajen'' III class, was a series of submarines built by Kockums and operated by the Swedish Navy. The design was influenced by the German Type XXI submarine. A total of six submarines were built between 1954 and 1958 and were kept in service until 1980.

The first Hajen''-class submarine to be built was in 1954, followed by (1955), (1955), (1957), (1958), and (1958).

See also Equivalent submarines of the same era

Type 205

References Conway's All the World's Fighting Ships 1947-1995