"The Fighter" is a song by American rap rock band Gym Class Heroes, from their fifth studio album The Papercut Chronicles II.

The song features vocals from American singer-songwriter and record producer Ryan Tedder of the band OneRepublic, and was released as the third and final single from the album on November 8, 2011.

Shots of Orozco doing Olympic training in a gym, as well as clips of home video of him competing as a child are shown in between.

The single was written by several writers, including all four Gym Class Heroes members, Tedder, Noel Zancanella and Jamie Heffernan.

"The Fighter" was covered by alternative rock band Paradise Fears in 2012.