Chart Appearances: 191
Highest Chart Entry: 1
First Chart Appearance: 22/06/1974
Number One Singles: 1
Total Top 10 Singles: 3
Total Top 10 Albums: 2
Total Top 40 Singles: 6
Total Top 40 Albums: 7
| Singles | |||||
|---|---|---|---|---|---|
| Release | First Charted | Last Charted | Peak | Appearances | |
 | Happy To Be On An Island In The Sun | 22/11/1975 | 24/01/1976 | 5 | 10 |
 | Can't Say How Much I Love You | 28/02/1976 | 27/03/1976 | 35 | 5 |
 | The Roussos Phenomenon | 26/06/1976 | 11/09/1976 | 1 | 12 |
 | When Forever Has Gone | 02/10/1976 | 04/12/1976 | 2 | 10 |
 | Because | 19/03/1977 | 09/04/1977 | 39 | 4 |
 | Kyrila | 18/06/1977 | 02/07/1977 | 33 | 3 |
| Albums | |||||
|---|---|---|---|---|---|
| Release | First Charted | Last Charted | Peak | Appearances | |
 | Forever And Ever | 22/06/1974 | 26/02/1977 | 2 | 68 |
 | Souvenirs | 19/04/1975 | 11/09/1976 | 25 | 18 |
 | Happy To Be | 24/04/1976 | 18/12/1976 | 4 | 34 |
 | My Only Fascination | 03/07/1976 | 14/08/1976 | 39 | 6 |
 | The Magic Of Demis Roussos | 16/04/1977 | 21/05/1977 | 29 | 6 |
 | Life And Love | 28/10/1978 | 06/01/1979 | 29 | 11 |
 | Forever And Ever - Definitive Collection | 16/03/2002 | 06/04/2002 | 17 | 4 |