The URBA Top 12 is an Argentine rugby union club competition organised by the Buenos Aires Rugby Union (URBA). It is the top division of the Argentine rugby league system. Created on 10 April 1899 by the "River Plate Rugby Union", the Top 13 is the oldest rugby competition in South America and one of the oldest club competitions in the world.

The Argentine Rugby Union is the governing body for rugby union in Argentina. It is a member of World Rugby, with a seat on that body's Executive Council, and a founding member of Sudamérica Rugby.