Kristen Marie Pfaff (née Parco; May 26, 1967 – June 16, 1994) was an American musician, best known as the bassist for alternative rock band Hole from 1993 to 1994. Prior to Hole, Pfaff was the bassist and backing vocalist for Minneapolis-based band Janitor Joe. Pfaff returned to Janitor Joe for a short tour in the weeks before her death in June 1994 of a heroin overdose.