Greg Anderson (born 1970 in Seattle, Washington) is an American musician. He is the guitarist of stoner doom band Goatsnake, and is also well known for his collaborations with Stephen O'Malley. Together, the duo participated in projects such as the short-lived death/doom metal band Thorr's Hammer, the extreme doom metal band Burning Witch, as well as the drone metal bands Sunn O))) and Teeth of Lions Rule the Divine.