# List of number-one dance airplay hits of 2005 (U.S.)

These are the Billboard magazine Hot Dance Airplay number one hits of 2005.
Note that Billboard publishes charts with an issue date approximately 7–10 days in advance.
| † | Number-one Dance Airplay song of the year |
| Issue date | Song | Artist(s) | Remixer(s) |
| January 1 | "Surrender" | Lasgo | |
| January 8 | "Walk into the Sun" | Dirty Vegas | King Unique |
| January 15 | "Surrender" | Lasgo | |
| January 22 | "Lose My Breath" | Destiny's Child | Maurice Joshua |
| January 29 | "Lose My Breath" | Destiny's Child | Maurice Joshua |
| February 5 | "Lose My Breath" | Destiny's Child | Maurice Joshua |
| February 12 | "How Would You Feel" | David Morales with Lea-Lorien | Peter Rauhofer |
| February 19 | "How Would You Feel" | David Morales with Lea-Lorien | Peter Rauhofer |
| February 26 | "1, 2 Step" | Ciara featuring Missy Elliott | Johnny Budz and Bimbo Jones |
| March 5 | "All This Time" | Jonathan Peters presents Sylver Logan Sharp | |
| March 12 | "All This Time" | Jonathan Peters presents Sylver Logan Sharp | |
| March 19 | "1, 2 Step" | Ciara featuring Missy Elliott | |
| March 26 | "All This Time" | Jonathan Peters presents Sylver Logan Sharp | |
| April 2 | "All This Time" | Jonathan Peters presents Sylver Logan Sharp | |
| April 9 | "1, 2 Step" | Ciara featuring Missy Elliott | |
| April 16 | "Since U Been Gone" | Kelly Clarkson | Jason Nevins |
| April 23 | "Since U Been Gone" | Kelly Clarkson | Jason Nevins |
| April 30 | "Since U Been Gone" | Kelly Clarkson | Jason Nevins |
| May 7 | "Since U Been Gone" | Kelly Clarkson | Jason Nevins |
| May 14 | "Since U Been Gone" | Kelly Clarkson | Jason Nevins |
| May 21 | "Since U Been Gone" | Kelly Clarkson | Jason Nevins |
| May 28 | "One Word" | Kelly Osbourne | Chris Cox |
| June 4 | "One Word" | Kelly Osbourne | Chris Cox |
| June 11 | "One Word" | Kelly Osbourne | Chris Cox |
| June 18 | "One Word" | Kelly Osbourne | Chris Cox |
| June 25 | "One Word" | Kelly Osbourne | Chris Cox |
| July 2 | "One Word" | Kelly Osbourne | Chris Cox |
| July 9 | † "Listen to Your Heart" | DHT | Furious EZ |
| July 16 | † "Listen to Your Heart" | DHT | Furious EZ |
| July 23 | † "Listen to Your Heart" | DHT | Furious EZ |
| July 30 | † "Listen to Your Heart" | DHT | Furious EZ |
| August 6 | "Don't Cha" | Pussycat Dolls featuring Busta Rhymes | Ralphi Rosario; Kaskade |
| August 13 | "Don't Cha" | Pussycat Dolls featuring Busta Rhymes | Ralphi Rosario; Kaskade |
| August 20 | "We Belong Together" | Mariah Carey | Peter Rauhofer |
| August 27 | "We Belong Together" | Mariah Carey | Peter Rauhofer |
| September 3 | "Don't Cha" | Pussycat Dolls featuring Busta Rhymes | |
| September 10 | "Don't Cha" | Pussycat Dolls featuring Busta Rhymes | |
| September 17 | "Don't Cha" | Pussycat Dolls featuring Busta Rhymes | |
| September 24 | "Don't Cha" | Pussycat Dolls featuring Busta Rhymes | |
| October 1 | "These Words" | Natasha Bedingfield | Lenny B, Ford, and Bimbo Jones |
| October 8 | "Pon de Replay" | Rihanna | |
| October 15 | "And She Said..." | Lucas Prata | |
| October 22 | "And She Said..." | Lucas Prata | |
| October 29 | "And She Said..." | Lucas Prata | |
| November 5 | "And She Said..." | Lucas Prata | |
| November 12 | "Hung Up" | Madonna | Tracy Young |
| November 19 | "Hung Up" | Madonna | Tracy Young |
| November 26 | "Hung Up" | Madonna | Tracy Young |
| December 3 | "Hung Up" | Madonna | Tracy Young |
| December 10 | "Hung Up" | Madonna | Tracy Young |
| December 17 | "Hung Up" | Madonna | Tracy Young |
| December 24 | "Hung Up" | Madonna | Tracy Young |
| December 31 | "Hung Up" | Madonna | Tracy Young |