Joshua Brennan (born 28 November 2001) is a French international rugby union player. His position is lock and he plays for Toulouse in the Top 14.
Born in Leixlip, Co. Kildare, Brennan grew up in Toulouse, where his father Trevor Brennan played with Toulouse. He started rugby with the Aucamville Academy before joining Toulouse at the age of 12.
He is the son of former Ireland international Trevor Brennan and the brother of Toulon prop