HNLMS Dolfijn (Dutch: Dolphin) was a Dolfijn-class submarine of the Royal Netherlands Navy.

The submarine was laid down on 30 December 1954 at the Rotterdamse Droogdok Mij shipyard in Rotterdam and launched on 20 May 1959.

[4] In March 1962 the boat and Zeeleeuw where send to the west coast of the US to show the flag.

[4] In January 1968 Dolfijn and Potvis left the port of Den Helder for a war simulation in the northern Atlantic Ocean that would last 5 weeks.

[4] In July 1976 Dolfijn, together with the frigates Tromp, Van Nes, Van Galen, the destroyers Holland, Zeeland and the replenishment ship Poolster visited New York in commemoration of the city's 200 years anniversary.