Guitar Hero may refer to:

Guitar Hero (series)a series of music video games published by RedOctane and Activision that includes the following titles:

Guitar Hero (video game), the first video game in the series
Guitar Hero II

Guitar Hero Encore: Rocks the 80s

Guitar Hero III: Legends of Rock

Guitar Hero III Mobile

Guitar Hero: Aerosmith
Guitar Hero, a song by Monkey Steals the Peach

Guitar Heroes, a 2004 classic music album by the Los Angeles Guitar Quartet

Source: Ultimate guitar blog.