The Australian Top 100 Singles Chart is a chart that ranks the best-performing singles of Australia. Published by the ARIA report, the data is compiled by the Australian Recording Industry Association (ARIA) based collectively on each single's weekly physical sales. digital sales and airplay.
| Week beginning | Song | Artist |
| 5 January | Lose Yourself | Eminem |
| 12 January | Lose Yourself | Eminem |
| 19 January | Lose Yourself | Eminem |
| 26 January | Lose Yourself | Eminem |
| 2 February | Lose Yourself | Eminem |
| 9 February | Lose Yourself | Eminem |
| 16 February | Lose Yourself | Eminem |
| 23 February | Lose Yourself | Eminem |
| 2 March | Beautiful | Christina Aguilera |
| 9 March | Lost Without You | Delta Goodrem |
| 16 March | All the Things She Said | t.A.T.u. |
| 23 March | Lost Without You | Delta Goodrem |
| 30 March | All the Things She Said | t.A.T.u. |
| 6 April | In da Club | 50 Cent |
| 13 April | In Da Club | 50 Cent |
| 20 April | In Da Club | 50 Cent |
| 27 April | In Da Club | 50 Cent |
| 4 May | In Da Club | 50 Cent |
| 11 May | Rock Your Body | Justin Timberlake |
| 18 May | Bring Me to Life | Evanescence featuring Paul McCoy |
| 25 May | Bring Me to Life | Evanescence featuring Paul McCoy |
| 1 June | Bring Me to Life | Evanescence featuring Paul McCoy |
| 8 June | Bring Me to Life | Evanescence featuring Paul McCoy |
| 15 June | Bring Me to Life | Evanescence featuring Paul McCoy |
| 22 June | Bring Me to Life | Evanescence featuring Paul McCoy |
| 29 June | Innocent Eyes | Delta Goodrem |
| 6 July | Innocent Eyes | Delta Goodrem |
| 13 July | Ignition (Remix) | R. Kelly |
| 20 July | Ignition (Remix) | R. Kelly |
| 27 July | Ignition (Remix) | R. Kelly |
| 3 August | Ignition (Remix) | R. Kelly |
| 10 August | Ignition (Remix) | R. Kelly |
| 17 August | Ignition (Remix) | R. Kelly |
| 24 August | Where Is the Love? | The Black Eyed Peas featuring Justin Timberlake |
| 31 August | Where Is the Love? | Black Eyed Peas featuring Justin Timberlake |
| 7 September | Where Is the Love? | Black Eyed Peas featuring Justin Timberlake |
| 14 September | Where Is the Love? | Black Eyed Peas featuring Justin Timberlake |
| 21 September | White Flag | Dido |
| 28 September | Not Me, Not I | Delta Goodrem |
| 5 October | Where Is the Love? | Black Eyed Peas featuring Justin Timberlake |
| 12 October | Where Is the Love? | Black Eyed Peas featuring Justin Timberlake |
| 19 October | Rise Up | Australian Idol Final 12 |
| 26 October | Rise Up | Australian Idol Final 12 |
| 2 November | Rise Up | Australian Idol Final 12 |
| 9 November | Slow | Kylie Minogue |
| 16 November | Me Against the Music | Britney Spears and Madonna |
| 23 November | Me Against the Music | Britney Spears and Madonna |
| 30 November | Angels Brought Me Here | Guy Sebastian |
| 7 December | Angels Brought Me Here | Guy Sebastian |
| 14 December | Predictable/Happy Xmas (War Is Over) | Delta Goodrem |
| 21 December | Predictable/Happy Xmas (War Is Over) | Delta Goodrem |
| 28 December | Shut Up | The Black Eyed Peas |
Famous quotes containing the words list, number-one:
“A man’s interest in a single bluebird is worth more than a complete but dry list of the fauna and flora of a town.”
—Henry David Thoreau (1817–1862)
“I’m your number-one fan.”
—William Goldman (b. 1931)