| # | SP/EP Title | Release Date | Label | UK | USA |
| 1. | Eagle On The Breeze / Knick-Knack-Song (This Old Man) | 1978 | Polydor | | |
| 2. | Danny Boy / Agur Jaunak | 1978 | Polydor | | |
| 3. | David's Song / Knick - Knack - Song | 11/1979 | Polydor | | |
| 4. | Ein Vogel kann im Käfig nicht fliegen / Alle Kinder brauchen Freunde | 1980 | Polydor | | |
| 5. | The Last Rose Of Summer | 2/1980 | Polydor | | |
| 6. | Who'll Come With Me (David's Song) / Join This Parade | 4/1980 | | | |
| 7. | We Love The Pope / Our Father | 1982 | Kel-Life | | |
| 8. | Une Famille C'est Une Chanson / Eine Familie Ist Wie Ein Lied / Old McDonald | 1984 | Kel-Life | | |
| 9. | Une Famille C'est Une Chanson / Didelidei | 1984 | Eddie Barclay | | |
| 10. | Hiroshima I'm Sorry / Hiroshima I'm Sorry (Live) / Ode To Joy | 1987 | Kel-Life | | |
| 11. | The Last Rose Of Summer / Join This Parade (Scotland The Brave) | 1988 | | | |
| 12. | Alle Kinder brauchen Freunde (Child) / Die Vogelhochzeit | 1988 | Polydor | | |
| 13. | Old McDonald / Amazing Grace | 1989 | All Star | | |
| 14. | Who'll Come With Me (David's Song) / Txiki | 1990 | All Star | | |
| 15. | Who'll Come With Me (David's Song) / Mull Of Kintyre / Alle Kinder Brauchen Freunde (Child) | 1990 | Polydor | | |
| 16. | Key To My Heart (Studio version) / Key To My Heart (Live) / Crazy | 1992 | Kel-Life | | |
| 17. | House On The Ocean / Chicken Pies / Neighbour | 1992 | | | |
| 18. | When The Last Tree... / When The Last Tree... (Internacional version) / One More Freaking Dollar | 1993 | Kel-Life | | |
| 19. | One More Freaking Dollar / Oh, Johnny | 1993 | Kel-Life | | |
| 20. | No Lies / Take Away | 1993 | Kel-Life | | |
| 21. | Didelidei / Eine Familie ist wie ein Lied | 1993 | All Star | | |
| 22. | An Angel / Break Free / Key To My Heart | 10/1994 | edel | 69 | |
| 23. | Who'll Come With Me | 1995 | | | |
| 24. | Quisiera Ser Un Angel / An Angel | 1995 | EMI | | |
| 25. | Why Why Why / We Are The World / She's Crazy | 2/1995 | edel | | |
| 26. | Roses Of Red (remix) / The Wolf / Roses Of Red (Groove mix) | 6/1995 | edel | | |
| 27. | Freedom | 9/1995 | | | |
| 28. | First Time (Mix) / Father's Nose / First Time (Live in Zürich) | 10/1995 | EMI | | |
| 29. | I Can't Help Myself / Look Up My File | 18.06.1996 | EMI | | |
| 30. | Every Baby / Fat Man / Like A Queen | 25.11.1996 | Kel-Life/Electrola | | |
| 31. | Gott deine Kinder / Que Dios Ayude | 25.11.1996 | Kel-Life/Electrola | | |
| 32. | Red Shoes / Say That You Love Me | 1997 | EMI | | |
| 33. | Fell In Love With An Alien / Never Gonna Break Me Down / Come Back To Me | 10.02.1997 | Kel-Life/EMI | | |
| 34. | Nanana / I'm So Happy / Staying Alive | 26.05.1997 | Kel-Life/EMI Electrola | | |
| 35. | When The Boys Come Into Town / It's OK Now | 07.07.1997 | Kel-Life/EMI | | |
| 36. | Because It's Love / Sweetest Angel / I'll Send You A Letter | 01.09.1997 | Kel-Life/EMI Electrola | | |
| 37. | One More Song / Say That You Love Me / Leave It To The Spirits | 19.01.1998 | Kel-Life/Electrola | | |
| 38. | I Will Be Your Bride / One More Freaking Dollar (Live) / First Time (Live) | 28.09.1998 | Kel-Life/Electrola | | |
| 39. | Weihnachten mit der Kelly Family EP
(Who'll Cme With Me / Es Ist Ein Ros' Entsprungen / Weißt Du Wieviel Sternlein Stehen? / Jingle Bells) | 1999 | | | |
| 40. | Oh It Hurts / Hooks / One More Song | 01.02.1999 | Kel-Life/Electrola | | |
| 41. | The Children Of Kosovo / Les Enfants Du Kosovo / D'Kanner Aus Kosovo / Die Kinder Vom Kosovo / De Kinderen Van Kosovo | 07.06.1999 | BMG | | |
| 42. | Loreley | 21.08.1999 | | | |
| 43. | Saban's Mystic Knights Of Tir Na Nog | 04.10.1999 | BMG | | |
| 44. | Ein Herz für Kinder - Medley / Mama (Radio Version) | 05.11.1999 | | | |
| 45. | Mama (Radio version) / Mama (Unplugged) / I Really Love You | 08.11.1999 | BMG | | |
| 46. | I Really Love You | 25.12.1999 | Kel-Life | | |
| 47. | By Myself, But Not Alone | 01.01.2000 | Kel-Life/BMG | | |
| 48. | I Wanna Kiss You / The Rose (Live) / I Will Be Your Bride | 28.02.2000 | Ariola | | |
| 49. | I Wanna Be Loved (Euro-Version) / I Wanna Be Loved (Instrumental) | 25.02.2002 | Polydor | | |
| 50. | What's The Matter You People / I Wanna Be Loved (Euro-Version) / Fee, Fee The Flea (Winnie The Pooh) / Walk Into The Paradise (Demo) / Watch The Steps (Demo) / So Many Troubles (Directors Cut) / Irish Song (Patricia's Lullaby) | 13.05.2002 | Polydor | | |
| 51. | Mrs. Speechless / Wasting All My Time / If There's A Paradise / Million Flies (Demo) / With Love (Drum Solo) / Mrs. Speechless (Instrumental) | 25.11.2002 | Polydor | | |
| 52. | Flip A Coin / What If Love / I Wish The Very Best / Flip A Coin (Instrumental) | 26.01.2004 | Polydor | | |
| 53. | Blood 2004 EP
(Blood (Radio Edit) / Don't Be So Unhappy / Where Does This End / Intro / Blood) | 17.05.2004 | Kel-Life | | |
| 54. | Streets Of Love / Couragesless / Edge Of Happiness / Streets Of Love (Rough demo) / Sandy (Jam session) | 13.09.2004 | Kel-Life | | |
| 55. | Good Neighbor | 10.03.2017 | Airforce1 | | |
| 56. | Over The Hump | 9/2019 | Universal | | |
