These hits topped the Ultratop 50 in 2021.[1]
| Flanders | |||
|---|---|---|---|
| Issue date | Song | Artist | |
| 2 January | "Nu wij niet meer praten" | Jaap Reesema and Pommelien Thijs | |
| 9 January | "Fever" | Dua Lipa and Angèle | |
| 16 January | |||
| 23 January | "Drivers License" | Olivia Rodrigo | |
| 30 January | |||
| 6 February | |||
| 13 February | |||
| 20 February | |||
| 27 February | |||
| 6 March | "Save Your Tears" | The Weeknd | |
| 13 March | "Wellerman" | Nathan Evans | |
| 20 March | "Without You" | The Kid Laroi | |
| 27 March | "Wellerman" | Nathan Evans | |
| 3 April | |||
| 10 April | "Friday" | Riton and Nightcrawlers featuring Mufasa & Hypeman | |
| 17 April | "Wellerman" | Nathan Evans | |
| 24 April | "1 op een miljoen" | Metejoor featuring Babet | |
| 1 May | "Friday" | Riton and Nightcrawlers featuring Mufasa & Hypeman | |
| 8 May | "De wereld draait voor jou" | Niels Destadsbader and Regi | |
| 15 May | |||
| 22 May | "Higher Power" | Coldplay | |
| 29 May | "The Wrong Place" | Hooverphonic | |
| 5 June | "Good 4 U" | Olivia Rodrigo | |
| 12 June | |||
| 19 June | |||
| 26 June | |||
| 3 July | |||
| 10 July | "Bad Habits" | Ed Sheeran | |
| 17 July | |||
| 24 July | |||
| 31 July | |||
| 7 August | |||
| 14 August | |||
| 21 August | |||
| 28 August | "Love Tonight" | Shouse | |
| 4 September | |||
| 11 September | |||
| 18 September | |||
| 25 September | |||
| 2 October | |||
| 9 October | "Stay" | The Kid Laroi and Justin Bieber | |
| 16 October | |||
| 23 October | "Easy on Me" | Adele | |
| 30 October | |||
| 6 November | |||
| 13 November | |||
| 20 November | |||
| 27 November | |||
| 4 December | |||
| 11 December | |||
| 18 December | |||
| 25 December | "Waterval" | K3 | |
| 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 | |||
| Position | Artist | Weeks #1 | +Flanders Ranking of most weeks at number 1 | 1 | 11 | |
|---|---|---|---|---|---|---|
| 2 | 9 | |||||
| 3 | 7 | |||||
| 4 | 6 | |||||
| 5 | 4 | |||||
| 6 | 3 | |||||
| 7 | 2 | |||||
| 7 | 2 | |||||
| 7 | 2 | |||||
| 7 | 2 | |||||
| 7 | Mufasa & Hypeman | 2 | ||||
| 7 | 2 | |||||
| 7 | 2 | |||||
| 7 | 2 | |||||
| 8 | 1 | |||||
| 8 | Pommelien Thijs | 1 | ||||
| 8 | 1 | |||||
| 8 | 1 | |||||
| 8 | Babet | 1 | ||||
| 8 | 1 | |||||
| 8 | 1 | |||||
| 8 | 1 |
| Position | Artist | Weeks #1 | +Wallonia Ranking of most weeks at number 1 | 1 | 15 | |
|---|---|---|---|---|---|---|
| 2 | 12 | |||||
| 2 | 12 | |||||
| 3 | 9 | |||||
| 4 | 5 | |||||
| 4 | Willow Sage Hart | 5 | ||||
| 5 | 2 | |||||
| 5 | 2 | |||||
| 5 | 2 | |||||
| 5 | 2 | |||||
| 5 | 2 | |||||
| 5 | 2 | |||||
| 6 | 1 | |||||
| 6 | 1 | |||||
| 6 | 1 |