Club San Martín (formerly Pacific Rugby Athletic Club) is an Argentine sports club based in the Sáenz Peña neighborhood of Greater Buenos Aires. San Martín is mostly known for its rugby union team, which currently plays in Top 12, the first division of the Unión de Rugby de Buenos Aires (URBA). The club also a field hockey squad which participates at tournaments organised by the Buenos Aires Hockey Association (AHBA). Other sports practised at San Martín are bowls and tennis.