2005 Number One Song Calendar |
| red # = weekly rock chartblue # = pop chart |
| 1 | 1, 2 Step | 1 | 1-01-05 |
| Ciara Featuring Missy Elliott |
 |  |
| 2 | Beautiful Soul | 1 | 1-08-05 |
| Jesse McCartney |
| | |
| 1-15-05 |
| 1, 2 Step by Ciara Featuring Missy Elliott returns to number one |
| 3 | Rich Girl | 1 | 1-29-05 |
| Gwen Stefani Featuring Eve |
| | |
| 4 | Mockingbird | 1 | 2-05-05 |
| Eminem |
| | |
| 5 | Boulevard Of Broken Dreams | 1 | 1 | 2-12-05 |
| Green Day |
| | |
| 6 | Since U Been Gone | 1 | 2-19-05 |
| Kelly Clarkson |
| | |
| 2-26-05 |
| Boulevard Of Broken Dreams by Green Day returns to number one |
| 7 | Caught Up | 1 | 3-05-05 |
| Usher |
| | |
| 8 | Candy Shop | 1 | 3-12-05 |
| 50 Cent |
| | |
| 9 | Obsession (No Es Amor) | 1 | 4-09-05 |
| Frankie J. Featuring Baby Bash |
| | |
| 10 | Lonely | 1 | 4-16-05 |
| Akon |
| | |
| 11 | Hollaback Girl | 1 | 4-23-05 |
| Gwen Stefani |
| | |
| 12 | We Belong Together | 1 | 5-14-05 |
| Mariah Carey |
| | |
| 13 | Behind These Hazel Eyes | 1 | 6-18-05 |
| Kelly Clarkson |
| | |
| 14 | Don't Cha | 1 | 6-25-05 |
| Pussycat Dolls Featuring Busta Rhymes |
| | |
| 15 | Listen To Your Heart | 1 | 7-16-05 |
| DHT Featuring Edmee |
| | |
| 16 | Pon De Replay | 1 | 7-30-05 |
| Rihanna |
| | |
| 8-06-05 |
| Listen To Your Heart by DHT Featuring Edmee returns to number one |
| 17 | Beverly Hills | 1 | 1 | 8-13-05 |
| Weezer |
| | |
| 18 | Shake It Off | 1 | 8-20-05 |
| Mariah Carey Featuring Jermaine Dupri |
| | |
| 19 | Sugar, We're Goin' Down | 1 | 1 | 9-17-05 |
| Fall Out Boy |
| | |
| 20 | My Humps | 1 | 9-24-05 |
| The Black Eyed Peas |
| | |
| 21 | Because Of You | 1 | 10-01-05 |
| Kelly Clarkson |
| | |
| 22 | Gold Digger | 1 | 10-08-05 |
| Kanye West Featuring Jamie Foxx |
| | |
| 23 | Photograph | 1 | 1 | 10-22-05 |
| Nickelback |
| | |
| 24 | Run It! | 1 | 11-05-05 |
| Chris Brown Featuring Juelz Santana |
| | |
| 25 | Stickwitu | 1 | 11-26-05 |
| Pussycat Dolls Featuring Avant |
| | |
| 26 | Don't Forget About Us | 1 | 12-03-05 |
| Mariah Carey |
| | |
| 12-10-05 |
| Stickwitu by Pussycat Dolls Featuring Avant returns to number one |
| 27 | Dirty Little Secret | 19 | 1 | 12-17-05 |
| The All-American Rejects |
| | |
| 28 | Laffy Taffy | 1 | 12-31-05 |
| D4L |
| | |