Founded in 1908 by alumni of St. George's College of Quilmes, the club sees itself as a pillar of Buenos Aires' British community.

On April 28, 1908, the headmaster of St. George's college Joseph Stevenson, and sixteen alumni established Old Georgian Club.

The team was affiliated with the Argentine Rugby Union in 1935, and due to its high performances Old Georgian was invited to play in first division in 1936.

The Rugby team was especially successful during the 1930s, winning three Torneo de la URBA consecutive championships between 1937 (remaining unbeaten) and 1939, which would be the club's only titles.

Argentine newspaper La Prensa published about those achievements: "With this victory, Old Georgian has established as the best rugby academy of our country" [3] When the World War II began, many players departed from the club to fight for Great Britain.