Martín Darío Leiva (born 23 April 1980) is an Argentine professional basketball player who plays for Boca Juniors of the Liga Nacional de Básquet and BCL Americas.

Leiva debuted in the LNB (Argentine 1st Division) on 12 October 1997, playing for Ferro Carril Oeste, against Independiente de General Pico.

[1] In 2007, he moved to Spain to play for Autocid Ford Burgos,[2] and the following season for Baloncesto León, both in the LEB (Spanish 2nd Division).

Upon his return, he helped the team win the 2009–10 and 2010–11 seasons of the LNB, as well as the 2009–10 FIBA Americas League.

[3] Leiva played with the junior national team of Argentina at the 1999 FIBA Under-19 World Cup.