Robert Hart (born 1 November 1958, Bournemouth, Dorset) is a British rock vocalist and songwriter.
He is currently the lead singer of Manfred Mann's Earth Band and the band Diesel.
He has performed as a solo artist, and with The Distance and also with former Whitesnake members in the band called Company of Snakes and with Bad Company.
He also fronted The Jones Gang, a rock group formed by Hart, Rick Wills and Kenney Jones.
He now performs as a solo artist as well as touring with his own band XBad Company, with Dave "Bucket" Colwell and Garry "Harry" James (ex-members of Bad Company).
He was the first English writer to be signed to Disney owned Hollywood Records.
He has also written several Number 1 hits, and written a number of songs for film soundtracks, whilst being signed to Roy Orbison's Still Working Music, Disney's Hollywood Records, and Island Records.