Peter Griesar (born 1969) is an American musician, known for playing keyboards, harmonica and providing backing vocals with the Dave Matthews Band from August 1990 to March 1993.[1] He grew up in Westchester County, New York and moved to Charlottesville, Virginia to attend the University of Virginia.[2] He met Dave Matthews, later joining his band. After leaving the band in 1993, he continued playing, releasing several solo albums.