Henry Villar (born May 24, 1987) is a right-handed former Major League Baseball pitcher.
Villar began his professional career in 2006 with the Dominican Summer Astros, going 1-1 with a 2.16 ERA in 13 games (seven starts). He spent 2007 with the DSL Astros as well, going 4-4 with a 2.45 ERA in 13 starts. In 2008, he pitched for the Greeneville Astros, going 3-6 with a 4.41 ERA in 13 starts. With the Lexington Legends in 2009, he was used primarily as a relief pitcher, going 3-4 with a 2.60 ERA in 43 games (three starts).
Villar made his major league debut with the Astros on September 10, 2010. He made eight appearances for the Astros in 2010, all as a relief pitcher.