Oscar Fritschi (25 February 1939 – 8 January 2016) was a Swiss politician. He was a member of the Free Democratic Party of Switzerland. He was born in Winterthur, Switzerland. From 1986 to 1992 Fritschi was president of the FDP of the Canton of Zurich. From 1991 to 1992 he was a member of the Cantonal Council of the Canton of Zurich. On November 25, 1991, he was elected in the National Assembly. He resigned in 1999 after he no longer had support.