Jean Gachassin (born 23 December 1941) is a former French rugby union footballer from Bagnères-de-Bigorre, Hautes-Pyrénées.

Gachassin is also the former President of the Fédération Française de Tennis.

In fact he was so versatile that he played every back position for France with the exception of scrum half.

He is considered one of the best backs France ever produced and scored some of the most spectacular tries of the 1960s.

This biographical article relating to French rugby union is a stub.