Eduar Antonio Villanueva is a Venezuelan middle-distance runner. He represented his country at the 2008 Summer Olympics and 2012 Summer Olympics and has participated in the World Championships in Athletics on three consecutive occasions. In 2011 he had the best ever performance by a Venezuelan runner at the World Championships, coming eighth in the 1500 metres. He set a Venezuelan record of 3:36.96 minutes in the semi-final.

The 2006 Ibero-American Championships in Athletics was the twelfth edition of the international athletics competition between Ibero-American nations that place at the Francisco Montaner Stadium in Ponce, Puerto Rico between 26–28 May.