Friedrich "Fritz" Künzli (8 January 1946 – 22 December 2019) was a Swiss football player.

[1] He achieved his greatest success teaming with Köbi Kuhn at FC Zürich, winning two league championships, and four Swiss Cups.

He earned 44 caps and scored 15 goals for Switzerland between 17 October 1965 and 16 November 1977.

[3] After retiring from football, he operated a restaurant in Zürich with his wife, former actress and model, Monika Kaelin.

This biographical article related to association football in Switzerland, about a forward, is a stub.