Ambrosio José Martín Cedres (born 30 April 1968) is a Spanish former handball player and current coach.
In the summer of 2012, he replaced Karl Erik Bøhn as head coach of Győri ETO KC.
Contemporaneously with his job in Hungary, he has been also coaching the Romania women's national handball team since 4 October 2016.
[4] In August 2019 he replaced Yevgeni Trefilov as the head coach of the Russian national team.
Martín was the first Spanish coach to win the Champions League trophy with a foreign club.