Martín Mendaro (born 1 August 1973 in Montevideo) is a former Uruguayan rugby union player and a current coach.
He played for Carrasco Polo Club in the Campeonato Uruguayo de Rugby.
He was called for the 1999 Rugby World Cup, playing in two games, without scoring.
He would be called once again for the 2003 Rugby World Cup, where he played in three games, remaining scoreless.
He was first head coach at Carrasco Polo Club, joining Trébol Paysandú in 2017/18, where he won the Campeonato Uruguayo de Rugby the same season.