These hits topped the Ultratop 50 in 2021.[1]
| 
 | 
| Wallonia |  
| Issue date | Song | Artist |  
| 2 January | "Fever" | Dua Lipa and Angèle |  
| 9 January |  
| 16 January |  
| 23 January |  
| 30 January |  
| 6 February |  
| 13 February |  
| 20 February |  
| 27 February |  
| 6 March | "Save Your Tears" | The Weeknd |  
| 13 March | "Fever" | Dua Lipa and Angèle |  
| 20 March | "Save Your Tears" | The Weeknd |  
| 27 March |  
| 3 April |  
| 10 April |  
| 17 April |  
| 24 April |  
| 1 May |  
| 8 May | "Morose" | Damso |  
| 15 May | "Save Your Tears" | The Weeknd |  
| 22 May |  
| 29 May |  
| 5 June |  
| 12 June | "Cover Me in Sunshine" | Pink and Willow Sage Hart |  
| 19 June | "Petrouchka" | Soso Maness featuring PLK |  
| 26 June |  
| 3 July | "Cover Me in Sunshine" | Pink and Willow Sage Hart |  
| 10 July |  
| 17 July |  
| 24 July |  
| 31 July | "Never Going Home" | Kungs |  
| 7 August | "Bad Habits" | Ed Sheeran |  
| 14 August |  
| 21 August |  
| 28 August |  
| 4 September |  
| 11 September |  
| 18 September |  
| 25 September |  
| 2 October | "Stay" | The Kid Laroi and Justin Bieber |  
| 9 October | "Bad Habits" | Ed Sheeran |  
| 16 October | "Stay" | The Kid Laroi and Justin Bieber |  
| 23 October | "Santé" | Stromae |  
| 30 October | "Bruxelles je t'aime" | Angèle |  
| 6 November | "Cold Heart (Pnau remix)" | Elton John and Dua Lipa |  
| 13 November | "Bruxelles je t'aime" | Angèle |  
| 20 November | "Cold Heart (Pnau remix)" | Elton John and Dua Lipa |  
| 27 November | "Easy on Me" | Adele |  
| 4 December |  
| 11 December | "Bruxelles je t'aime" | Angèle |  
| 18 December |  
| 25 December |   
 | 
 
See also
References