HSwMS Hajen (1954)

HSwMS Hajen (Hj), (Swedish for "The shark") was the lead boat of the Hajen-class submarine of the Swedish Navy.

Construction and career
HSwMS Hajen was launched on 11 December 1954 by Saab Kockums, Malmö and commissioned on 28 February 1957.

She was decommissioned on 1 July 1980 and later scrapped in Landskrona in 1983.