Friedrich "Fritz" Künzli (8 January 1946 – 22 December 2019) was a Swiss footballer. He played as a striker. From 1961 to 1979, he played in 313 matches in the Nationalliga A scoring a record 201 goals. In 1978, he played part of one season in the North American Soccer League. He played for many club sides, including Zürich, and the Switzerland national team. He played two games for Switzerland at the 1966 FIFA World Cup. Künzli was born in Glarus.