Jost Gross (1 March 1946 – 6 May 2005) was a Swiss politician of the Social Democratic Party.
Also from 1980 to 1984 he was president of the Social Democratic party in Thurgau.
He was president of the trade union Thurgau (Gewerkschaftsbund) and Pro Mente Sana since 1994.
He died while playing football at an international parliamentary tourney in Waldenburg, Baden-Württemberg, Germany.
His successor in the National Council was Edith-Graf Litscher who was sworn in on 30 May 2005.