Gilbert O'Sullivan (Waterford, 1 de Dezembro de 1946), nome artístico de Raymond Edward O'Sullivan, é um cantor e compositor irlandês.
Teve como maiores sucessos os hits do início dos anos 70 "Alone Again (Naturally)", "Clair" e "Get Down".
A revista de música, Record Mirror, elegeu-o como o cantor masculino No. 1 no Reino Unido no ano de 1972.
Em todo o mundo, ele obteve dezesseis top quarenta, incluindo seis canções número um, das quais a primeira foi de 1970 "Nothing Rhymed".
Discografia:
Álbuns:
1971 Himself
Released: August 1971
1972 Back to Front
Released: 1972
1973 I'm A Writer Not A Fighter
Released: September 1973
1974 A Stranger In My Own Back Yard
Released: October 1974
1976 Greatest Hits
Released: November 1976
1977 Southpaw
Released: November 1977
1980 Off Centre
Released: October 1980
1981 20 Golden Greats
Released: 1981
1982 Life & Rhymes
Released: October 1982
1987 Frobisher Drive (Germany Only)
Released: 1987
1989 In The Key Of G
Released: November 1989
1991 Nothing But The Best
Released: 1991
1991 Sounds Of The Loop
Released: November 1991
1994 By Larry (also known as 'The Little Album')
Released: April 1994
1995 The Best Of Gilbert O'Sullivan: Live In Japan
Released: April 1995
1995 Every Song Has Its Play
Released: May 1995
1997 Singer Sowing Machine
Released: November 1997
2001 Irlish
Released: October 2001
2003 Piano Foreplay
Released: 2003
2004 The Berry Vest Of Gilbert O'Sullivan
Released: March 2004
2007 A Scruff At Heart
Released: March 2007