Juan Martín Pereyra is an Argentine swimmer.

[1][2] He has represented Argentina at three consecutive Summer Olympics.

[3] At the 2004 Summer Olympics, he competed in the men's 200 metre freestyle, 400 metre freestyle and the 1500 metre freestyle, finishing in 40th, 27th and 26th respectively.

[3] At the 2008 and 2012 Summer Olympics, he competed in the 400 and 1500 metres.

[3] This biographical article related to an Argentine swimmer is a stub.