Joseph Cottet (14 April 1923 – 23 May 2019) was a Swiss politician. He was born in Bossonnens. He served as a member of the Grand Council of Fribourg for the Party of Farmers, Traders and Independents from 1957 to 1971. Cottet later served in the National Council as a member of the People's Party from 1983 to 1987.
Cottet died on 23 May 2019, at the age of 96.