Linda Perhacs is an American psychedelic folk singer, who released her first album Parallelograms in 1970 to scant notice or sales. The album was rediscovered by record enthusiasts and grew in popularity with the rise of the New Weird America movement and the Internet. It was reissued on CD and 2-LP in 2005, and again in 2008.

Her songs have been featured in soundtracks to many films including Daft Punk's Electroma. Perhacs also sang backing vocals on "Freely" from Devendra Banhart's Smokey Rolls Down Thunder Canyon and features in Prefuse 73's track "Rain Edit (Interlude)" from the album Surrounded by Silence.