Horacio Agulla (born October 22, 1984) is an Argentine rugby union player, who plays for Castres Olympique at club level.

Horacio attended St. Felipe The Apostle School in Don Torcuato, a suburb in The Province of Buenos Aires.

Agulla made his debut for the national side on December 3, 2005, in a match against Samoa.

It was reported in early April 2010 (including on Sky Sports in the UK) that he had signed a contract to play for Leicester Tigers from the 2010/2011 season, joining his fellow Argentine internationals Marcos Ayerza and Lucas González Amorosino at Welford Road.

[3] Horacio was part of the Argentina squad that competes in the Rugby Championship.