# List of UK Independent Singles Chart number ones of 2021

These are the Official Charts Company's UK Independent Singles Chart number-one singles of 2021.

## Chart history

| Chart date (week ending) | Song | Artist(s) | Record Label |
| 7 January | "Merry Xmas Everybody" | Slade | BMG |
| 14 January | "Really Love" | KSI featuring Craig David and Digital Farm Animals | BMG |
| 21 January | "Really Love" | KSI featuring Craig David and Digital Farm Animals | BMG |
| 28 January | "Really Love" | KSI featuring Craig David and Digital Farm Animals | BMG |
| 4 February | "Really Love" | KSI featuring Craig David and Digital Farm Animals | BMG |
| 11 February | "Really Love" | KSI featuring Craig David and Digital Farm Animals | BMG |
| 18 February | "Really Love" | KSI featuring Craig David and Digital Farm Animals | BMG |
| 25 February | "Commitment Issues" | Central Cee | Central Cee |
| 4 March | "Commitment Issues" | Central Cee | Central Cee |
| 11 March | "Commitment Issues" | Central Cee | Central Cee |
| 18 March | "Commitment Issues" | Central Cee | Central Cee |
| 25 March | "Commitment Issues" | Central Cee | Central Cee |
| 1 April | "Commitment Issues" | Central Cee | Central Cee |
| 8 April | "Commitment Issues" | Central Cee | Central Cee |
| 15 April | "Commitment Issues" | Central Cee | Central Cee |
| 22 April | "Commitment Issues" | Central Cee | Central Cee |
| 29 April | "Commitment Issues" | Central Cee | Central Cee |
| 6 May | "Didn't Know" | Tom Zanetti | Sic |
| 13 May | "Didn't Know" | Tom Zanetti | Sic |
| 20 May | "Didn't Know" | Tom Zanetti | Sic |
| 27 May | "Didn't Know" | Tom Zanetti | Sic |
| 3 June | "Butter" | BTS | Big Hit Entertainment |
| 10 June | "Butter" | BTS | Big Hit Entertainment |
| 17 June | "Butter" | BTS | Big Hit Entertainment |
| 24 June | "Didn't Know" | Tom Zanetti | Sic |
| 1 July | "Holiday" | KSI | BMG |
| 8 July | "Holiday" | KSI | BMG |
| 15 July | "Holiday" | KSI | BMG |
| 22 July | "Holiday" | KSI | BMG |
| 29 July | "Holiday" | KSI | BMG |
| 5 August | "Holiday" | KSI | BMG |
| 12 August | "Holiday" | KSI | BMG |
| 19 August | "Holiday" | KSI | BMG |
| 26 August | "Holiday" | KSI | BMG |
| 2 September | "Holiday" | KSI | BMG |
| 9 September | "Holiday" | KSI | BMG |
| 16 September | "Holiday" | KSI | BMG |
| 23 September | "Obsessed With You" | Central Cee | Central Cee |
| 30 September | "Love Nwantiti (Ah Ah Ah)" | CKay | WM South Africa |
| 7 October | "Love Nwantiti (Ah Ah Ah)" | CKay | WM South Africa |
| 14 October | "Love Nwantiti (Ah Ah Ah)" | CKay | WM South Africa |
| 21 October | "Love Nwantiti (Ah Ah Ah)" | CKay | WM South Africa |
| 28 October | "Love Nwantiti (Ah Ah Ah)" | CKay | WM South Africa |
| 4 November | "Love Nwantiti (Ah Ah Ah)" | CKay | WM South Africa |
| 11 November | "Monster Mash" | Bobby Boris Pickett | The Monster Mash.Com |
| 18 November | "Love Tonight" | Shouse | Hell Beach |
| 25 November | "Someone like You" | Adele | XL |
| 2 December | "Someone like You" | Adele | XL |
| 9 December | "Merry Xmas Everybody" | Slade | BMG |
| 16 December | "Merry Xmas Everybody" | Slade | BMG |
| 23 December | "Merry Xmas Everybody" | Slade | BMG |
| 30 December | "Sausage Rolls for Everyone" | LadBaby featuring Ed Sheeran and Elton John | FrtyFve |