Galván started his career at Racing Club de Avellaneda in 1992, before moving to Brazil in 1998 to play for Clube Atlético Mineiro.

Among other titles, he won the Minas Gerais state with Atlético Minero.

He also scored an own goal at Vila Belmiro, in a 2–0 defeat against Santos' biggest rivals, Corinthians.

Galván returned to Argentina in 2002 to play for Club Atlético Lanús and in 2004 he had a brief spell with Ciudad de Murcia in Spain.

In 2007 Galván joined Peruvian team Universitario de Deportes, in February 2009 he announced that he plans to retire in December 2010 to take up a position as a youth coach with the club.