| ARIA Charts number-one singles of 2020 | |
|---|---|
| Other Australian number-one charts of 2020 | |
| albums | |
| urban singles | |
| dance singles | |
| club tracks | |
| digital tracks | |
| streaming tracks | |
| Top Australian singles and albums of 2020 | |
| Triple J Hottest 100 | |
| top 25 singles | |
| top 25 albums |
The ARIA Singles Chart ranks the best-performing singles in Australia. Its data, published by the Australian Recording Industry Association, is based collectively on the weekly physical and digital sales and streams of singles.[1] In 2020, eleven songs reached number one, with "Dance Monkey" by Tones and I returning to the top on the first chart of the year after spending 21 weeks atop the chart in 2019. Nine artists, The Weeknd, Saint Jhn, DaBaby, Roddy Ricch, Jawsh 685, Cardi B, Megan Thee Stallion, 24kGoldn and Iann Dior, reached the top for the first time.
| † | Indicates best-performing single of 2020[2] |
| Issue date | Song | Artist(s) | Ref. |
|---|---|---|---|
| 6 January | "Dance Monkey" | Tones and I | [3] |
| 13 January | |||
| 20 January | |||
| 27 January | "Blinding Lights" † | The Weeknd | [4] |
| 3 February | |||
| 10 February | |||
| 17 February | |||
| 24 February | |||
| 2 March | |||
| 9 March | |||
| 16 March | |||
| 23 March | |||
| 30 March | |||
| 6 April | "Roses" | Saint Jhn | [5] |
| 13 April | |||
| 20 April | "Blinding Lights" † | The Weeknd | [6] |
| 27 April | "Roses" | Saint Jhn | [7] |
| 4 May | |||
| 11 May | |||
| 18 May | |||
| 25 May | "Rockstar" | DaBaby featuring Roddy Ricch | [8] |
| 1 June | |||
| 8 June | |||
| 15 June | |||
| 22 June | |||
| 29 June | |||
| 6 July | "Savage Love (Laxed – Siren Beat)" | Jawsh 685 and Jason Derulo | [9] |
| 13 July | |||
| 20 July | |||
| 27 July | |||
| 3 August | "Cardigan" | Taylor Swift | [10] |
| 10 August | "Savage Love (Laxed – Siren Beat)" | Jawsh 685 and Jason Derulo | [11] |
| 17 August | |||
| 24 August | "WAP" | Cardi B featuring Megan Thee Stallion | [12] |
| 31 August | |||
| 7 September | |||
| 14 September | |||
| 21 September | |||
| 28 September | |||
| 5 October | "Mood" | 24kGoldn featuring Iann Dior | [13] |
| 12 October | |||
| 19 October | |||
| 26 October | |||
| 2 November | "Positions" | Ariana Grande | [14] |
| 9 November | |||
| 16 November | "Mood" | 24kGoldn featuring Iann Dior | [15] |
| 23 November | |||
| 30 November | |||
| 7 December | |||
| 14 December | |||
| 21 December | "Willow" | Taylor Swift | [16] |
| 28 December | "All I Want for Christmas Is You" | Mariah Carey | [17] |
| Position | Artist | Weeks at No. 1 |
|---|---|---|
| 1 | The Weeknd | 11 |
| 2 | 24kGoldn | 9 |
| 2 | Iann Dior | 9 |
| 3 | Saint Jhn | 6 |
| 3 | DaBaby | 6 |
| 3 | Roddy Ricch | 6 |
| 3 | Jawsh 685 | 6 |
| 3 | Jason Derulo | 6 |
| 3 | Cardi B | 6 |
| 3 | Megan Thee Stallion | 6 |
| 4 | Tones and I | 3 |
| 5 | Ariana Grande | 2 |
| 5 | Taylor Swift | 2 |
| 6 | Mariah Carey | 1 |
