| Top 40 Hits of December 2003 |
| 1 |
Will Young | Leave Right Now |
| 2 |
Ozzy & Kelly Osbourne | Changes |
| 3 |
Michael Andrews featuring Gary Jules | Mad World |
| 4 |
Black Eyed Peas | Shut Up |
| 5 |
Shane Richie | I'm Your Man |
| 6 |
Darkness | Christmas Time (Don't Let The Bells End) |
| 7 |
Westlife | Mandy |
| 8 |
Gareth Gates | Say It Isn't So |
| 9 |
Bo Selecta | Proper Crimbo |
| 10 |
Girls Aloud | Jump |
| 11 |
Idols | Happy Xmas (War Is Over) |
| 12 |
Katie Melua | The Closest Thing To Crazy |
| 13 |
Cliff Richard | Santa's List |
| 14 |
Simply Red | You Make Me Feel Brand New |
| 15 |
Outkast | Hey Ya! |
| 16 |
Evanescence | My Immortal |
| 17 |
Cheeky Girls | Have A Cheeky Christmas |
| 18 |
Kevin Lyttle | Turn Me On |
| 19 |
Atomic Kitten featuring Kool & The Gang | Ladies Night |
| 20 |
Dido | Life For Rent |
| 21 |
Christina Aguilera | The Voice Within |
| 22 |
UB40 featuring United Colours Of Sound | Swing Low |
| 23 |
Sugababes | Too Lost In You |
| 24 |
D-Side | Real World |
| 25 |
Busted | Crashed The Wedding |
| 26 |
Blue featuring Stevie Wonder & Angie Stone | Signed Sealed Delivered I'm Yours |
| 27 |
Ultrabeat | Feelin' Fine |
| 28 |
Fatman Scoop featuring The Crooklyn Clan | Be Faithful |
| 29 |
Ja Rule | Clap Back / Reigns |
| 30 |
Nelly Furtado | Powerless (Say What You Want) |
| 31 |
Madonna | Love Profusion |
| 32 |
Lemar | 50 / 50 / Lullaby |
| 33 |
Big Brovaz | Ain't What You Do |
| 34 |
Lost Brothers featuring G Tom Mac | Cry Little Sister (I Need U Now) |
| 35 |
Alicia Keys | You Don't Know My Name |
| 36 |
Britney Spears featuring Madonna | Me Against The Music |
| 37 |
Alex Parks | Maybe That's What It Takes |
| 38 |
Delta Goodrem | Not Me Not I |
| 39 |
Michael Jackson | One More Chance |
| 40 |
Daniel O'Donnell | You Raise Me Up |
