Gunnar Johan Stålsett (born 10 February 1935, in Nordkapp) is a Norwegian theologian and politician.

He was leader of the Centre Party 1977–1979, general secretary of the Lutheran World Federation 1985–1993 and bishop of Oslo, in the Church of Norway 1998–2005.

Stålsett is a graduate from MF Norwegian School of Theology in Oslo, and was awarded the qualification cand.theol.

He has also been a General Secretary of the Lutheran World Federation and a member of the Norwegian Nobel Committee until he was appointed to bishop in 1998.

He served as a deputy representative to the Norwegian Parliament from Oslo in during the term 1977–1981, and chaired the Centre Party from 1977 to 1979.