This is a list of songs that topped the Belgian Walloon (francophone) Ultratop 40 in 2003.[1]
| Issue Date | Artist | Title |
|---|---|---|
| January 4 | Paris Latino | |
| January 11 | Star Academy 2 | Paris Latino |
| January 18 | Star Academy 2 | Paris Latino |
| January 25 | Lose Yourself | |
| February 1 | Eminem | Lose Yourself |
| February 8 | Eminem | Lose Yourself |
| February 15 | Eminem | Lose Yourself |
| February 22 | Mundian to Bach Ke | |
| March 1 | Le Frunkp | |
| March 8 | Alphonse Brown | Le Frunkp |
| March 15 | Alphonse Brown | Le Frunkp |
| March 22 | Alphonse Brown | Le Frunkp |
| March 29 | Alphonse Brown | Le Frunkp |
| April 5 | Cassé | |
| April 12 | Nolwenn Leroy | Cassé |
| April 19 | Kana | Plantation |
| April 26 | Kana | Plantation |
| May 3 | Kana | Plantation |
| May 10 | Kana | Plantation |
| May 17 | Kana | Plantation |
| May 24 | Ma Liberté de penser | |
| May 31 | Florent Pagny | Ma Liberté de penser |
| June 7 | Florent Pagny | Ma Liberté de penser |
| June 14 | Sur un air latino | |
| June 21 | Fan | |
| June 28 | Lorie | Sur Un Air Latino |
| July 5 | Lorie | Sur Un Air Latino |
| July 12 | Lorie | Sur Un Air Latino |
| July 19 | Lorie | Sur Un Air Latino |
| July 26 | The Underdog Project & The Sunclub | Summer Jam 2003 |
| August 2 | Je voulais te dire que je t'attends | |
| August 9 | Jonatan Cerrada | Je voulais te dire que je t'attends |
| August 16 | Jonatan Cerrada | Je voulais te dire que je t'attends |
| August 23 | The Underdog Project & The Sunclub | Summer Jam 2003 |
| August 30 | The Underdog Project & The Sunclub | Summer Jam 2003 |
| September 6 | The Underdog Project & The Sunclub | Summer Jam 2003 |
| September 13 | DJ | |
| September 20 | Diam's | DJ |
| September 27 | Diam's | DJ |
| October 4 | Laisse Parler Les Gens | |
| October 11 | Jocelyne Labylle, Cheela, Jacob Desvarieux & Passi | Laisse Parler Les Gens |
| October 18 | La Bamba | |
| October 25 | Star Academy 3 | La Bamba |
| November 1 | Star Academy 3 | La Bamba |
| November 8 | Star Academy 3 | La Bamba |
| November 15 | Hey Oh | |
| November 22 | Tragédie | Hey Oh |
| November 29 | Tragédie | Hey Oh |
| December 6 | Tragédie | Hey Oh |
| December 13 | Tragédie | Hey Oh |
| December 20 | Tragédie | Hey Oh |
| December 27 | Tragédie | Hey Oh |
This is the ten best-selling/performing singles[2] in 2003.
| Pos. | Artist | Title | HP | Weeks | |
|---|---|---|---|---|---|
| 1 | Alphone Brown | "Le Frunkp" | 1 | 22 | |
| 2 | The Underdog Project & The Sunclub | "Summer Jam 2003" | 1 | 23 | |
| 3 | Diam's | "DJ" | 1 | 24 | |
| 4 | Jonatan Cerrada | "Je voulais te dire que je t'attends" | 1 | 19 | |
| 5 | Kana | "Plantation" | 1 | 20 | |
| 6 | Lorie | "Sur un air latino" | 1 | 23 | |
| 7 | Eminem | "Lose Yourself" | 1 | 21 | |
| 8 | Booming People | "Chihuahua" | 2 | 25 | |
| 9 | Nolwenn Leroy | "Cassé" | 1 | 13 | |
| 10 | Blue featuring Elton John | "Sorry Seems to Be the Hardest Word" | 4 | 23 |