Eliseo Nicolás Branca (born 20 September 1957 in Hurlingham) is an Argentine retired rugby union player.
Hailing from Hurlingham, in the Buenos Aires province, Branca started his career in the local club Curupaytí.
He won the 1985 and 1987 South American Rugby Championships, then, Branca took part with his country at the 1987 Rugby World Cup, where he played all the 3 pool stage matches against Fiji, Italy and New Zealand; he also won the 1989 South American Rugby Championship and in 1990, he ended his international career at Buenos Aires, with a win against England.
In 2000 he also ended his club career, after 27 years in the team;[2] he also won a Nacional de Clubes.
Moving to the coaching career, he led CASI to the conquest of the URBA tournament in 2005 at the end of a final won against the city rivals San Isidro;[3] due to disagreements with the management, he left the main team at the start of 2006 to then resume in the next season.