| # | Artist | Album Title | Year | Chart Entries | 
| 1 | Gilbert O'Sullivan | Gilbert O'Sullivan Himself | 1972 | Norway 1 - Apr 1972 (49 weeks), Dutch 70s 2 - Sep 1971 (41 weeks), UK 5 - Sep 1971 (82 weeks), Austria 7 - Oct 1973 (1 month), Billboard 9 - Aug 1972 (29 weeks) (4 weeks in top 10), US BB 56 of 1972, US CashBox 75 of 1972, Italy 92 of 1972, Xgau rating B (1972) | 
| 2 | Gilbert O'Sullivan | Back To Front | 1972 | UK 1 - Nov 1972 (64 weeks), Norway 1 - Nov 1972 (27 weeks), Dutch 70s 2 - Nov 1972 (6 weeks), Australia Goset 19 - Feb 1973 (3 weeks), Italy 23 of 1973, Billboard 48 - Jan 1973 (19 weeks) | 
| 3 | Gilbert O'Sullivan | I'm A Writer Not A Fighter | 1973 | UK 2 - Oct 1973 (25 weeks), UK Gold (certified by BPI in Oct 1973), Norway 15 - Oct 1973 (2 weeks), Italy 87 of 1973, Billboard 101 - Oct 1973 (10 weeks) | 
| 4 | Gilbert O'Sullivan | The Berry Vest Of Gilbert O'Sullivan | 2004 | UK 20 - Mar 2004 (5 weeks), Norway 32 - Apr 2004 (2 weeks), UK Silver (certified by BPI in Apr 2004) | 
| 5 | Gilbert O'Sullivan | Stranger In My Own Back Yard | 1974 | UK 9 - Oct 1974 (8 weeks), UK Silver (certified by BPI in Dec 1974) | 
| 6 | Gilbert O'Sullivan | Gilbert O'Sullivan's Greatest Hits | 1976 | UK 13 - Dec 1976 (11 weeks), UK Silver (certified by BPI in Jan 1977) | 
| 7 | Gilbert O'Sullivan | Nothing But The Best | 1991 | UK 50 - May 1991 (4 weeks) | 
| 8 | Gilbert O'Sullivan | 20 Golden Greats - Gilbert O'Sullivan | 1981 | UK 98 - Sep 1981 (1 week) | 
| 9 | Gilbert O'Sullivan | The Essential Collection | 2016 | UK Albums 2013-23 peak 11 - Jun 2016 (5 weeks) | 
| 10 | Gilbert O'Sullivan | Gilbert O'Sullivan | 2018 | UK Albums 2013-23 peak 20 - Sep 2018 (1 week) | 
| 11 | Gilbert O'Sullivan | Driven | 2022 | UK Albums 2013-23 peak 26 - Jul 2022 (1 week) |