| Gilbert O'Sullivan
01: Lost A Friend 02: Get Down 03: We Will
| | Dover UK | ROJCD 1 | Nov 1989 | CD Single | 1 | | |
| Gilbert O'Sullivan And Peggy Lee
01: Can't Think Straight
Gilbert O'Sullivan
02: Sometimes 03: Divorce Irish Style
| | Park UK | PRKCD 15 | 1992 | CD Single | 1 | | |
| Gilbert O'Sullivan
01: Are You Happy? 02: Nothing Rhymed 03: Or So They Say
| | Park UK | PRK CD 21 | 22 Nov 1993 | CD Single | 1 | | |
| Gilbert O'Sullivan
01: Dear Dream (Remix) 02: Dear Dream (Dance Mix Radio Edit) 03: Sometimes (Alternate Version) 04: Dear Dream (Dance Mix Full Version)
| | Park UK | PRKCD 32 | 27 Nov 1995 | CD Single | 1 | | |
| Gilbert O'Sullivan
01: Ain't No Telling (What Tomorrow Will Bring) 02: Doesn't It Make You Sick (Mortar And Brick) 03: Break A Leg
| | Park UK | PRK CD 412 | 22 Oct 1998 | CD Single | 1 | 7.3 | |
| Gilbert O'Sullivan
01: Say Goodbye 02: Sex Appeal
The Shoreditch Ogre
03: Clair
| | Bygum UK | BGR 103 | 30 Jul 2001 | CD Single | 1 | | |
| Gilbert O'Sullivan
01: Two's Company (Three Is Allowed) 02: I Have My Coat To Keep Me Warm 03: There Are Others
| | Bygum UK | BGR 104 | 1 Mar 2002 | CD Single | 2 | 9.0 | |
| Gilbert O'Sullivan
01: Ooh Baby (Radio Mix) 02: Ooh Baby (Vocoder Mix) 03: Ooh Baby (Vocal Mix) 04: Ooh Baby (Radio FX Mix)
| | Bygum UK | BGR 108 | Dec 2002 | CD Single | 3 | 7.8 | |
| Gilbert O'Sullivan
01: You Can't Con-crete (Radio Mix)
| | Bygum UK | BGR 116 | 10 Sep 2007 | CD Single | 2 | | |
| Gilbert O'Sullivan
01: Never Say Di Radio Edit
| | Bygum UK | BGR 201 | 14 Jul 2008 | CD Single | 2 | | |
| Gilbert O'Sullivan
01: All They Wanted To Say (Radio Edit) 03: All They Wanted To Say (Album Version)
| | Hypertension UK | HYP 11374 | 7 Feb 2011 | CD Single | 1 | | |
| Gilbert O'Sullivan
01: Nothing Rhymed 02: Everybody Knows
| | Union Square UK | DDSALVOS041 | Jan 2012 | CD Single | 1 | | |
| Gilbert O'Sullivan
01: Out Of The Question 02: In My Hole
| | Union Square UK | DDSALVOS073 | Aug 2012 | CD Single | 5 | | |
| Gilbert O'Sullivan
01: Get Down 02: A Very Extraordinary Sort Of Girl
| | Union Square UK | DDSALVOS077 | 2 Nov 2012 | CD Single | 1 | 7.0 | |
| Gilbert O'Sullivan With The Treorchy Male Choir
01: Me Mum (Radio Single)
| | Union Square UK | DDUSM 100 | 10 Mar 2013 | CD Single | 2 | 10.0 | |
| Gilbert O'Sullivan
01: Ooh-Wakka-Doo-Wakka-Day (Radio Single)
| | Union Square UK | DDSALVOSO64 | 25 Nov 2013 | CD Single | 0 | | |
| Gilbert O'Sullivan
01: Where Did You Go To ?
| | BMG UK | BMGCAT264PO | 2018 | CD Single | 1 | | |