Greg Hetson is an American musician. He is best known as the guitarist for the influential hardcore punk bands Circle Jerks and Bad Religion. He is known for his high energy stage antics which people have coined the term “The Hetson Leap”. Hetson was a founding member of and also plays guitar in another supergroup, Punk Rock Karaoke, and the hardcore punk band G.F.P.

In 1980, Hetson abandoned his position as guitarist of the punk/alternative band Redd Kross to form The Circle Jerks with former Black Flag vocalist Keith Morris. Soon after, they released their debut LP, Group Sex and in 1980 were featured in the Los Angeles documentary The Decline of Western Civilization along with several other Los Angeles punk bands.