Jens Gunderssen (19 May 1912 – 11 December 1969) was a Norwegian singer, songwriter, actor, stage producer and theatre director.

Gunderssen made his professional stage debut in April 1939 at Det Nye Teater, where he worked until 1950.

He was chairman for Norsk Skuespillerråd from 1947 to 1949, and board member of Nordisk Teaterutvalg from 1947 to 1950.

Here he got acclaim for his production of Dylan Thomas' play Under Milk Wood.

He also played minor roles in the films Gullfjellet (1941), Den forsvundne pølsemaker (1941), Jeg drepte --!