List of number-one singles of 2010 (Ireland)
This is a list of the IRMA's Irish Singles Chart Top 50 number-ones of 2010.
| Issue Date | Song | Artist |
|---|---|---|
| January 7 | "The Climb" | Joe McElderry |
| January 14 | "Bad Romance" | Lady Gaga |
| January 21 | "Fireflies" | Owl City |
| January 28 | ||
| February 4 | "Under Pressure (Ice Ice Baby)" | Jedward featuring Vanilla Ice |
| February 11 | "Everybody Hurts" | Helping Haiti |
| February 18 | "Under Pressure (Ice Ice Baby)" | Jedward featuring Vanilla Ice |
| February 25 | ||
| March 4 | "Gave It All Away" | Boyzone |
| March 11 | "Under Pressure (Ice Ice Baby)" | Jedward featuring Vanilla Ice |
| March 18 | "Gave It All Away" | Boyzone |
| March 25 | "Telephone" | Lady Gaga featuring Beyoncé |
| April 1 | ||
| April 8 | ||
| April 15 | ||
| April 22 | "Gives You Hell" | Glee Cast |
| April 29 | "OMG" | Usher featuring will.i.am |
| May 6 | ||
| May 13 | "Hey, Soul Sister" | Train |
| May 20 | "All Night Long" | Alexandra Burke featuring Pitbull |
| May 27 | "Stereo Love" | Edward Maya & Vika Jigulina |
| June 3 | ||
| June 10 | ||
| June 17 | ||
| June 24 | "California Gurls" | Katy Perry featuring Snoop Dogg |
| July 1 | ||
| July 8 | ||
| July 15 | ||
| July 22 | "Love the Way You Lie" | Eminem featuring Rihanna |
| July 29 | "We No Speak Americano" | Yolanda Be Cool & DCUP |
| August 5 | "Club Can't Handle Me" | Flo Rida featuring David Guetta |
| August 12 | "Love the Way You Lie" | Eminem featuring Rihanna |
| August 19 | ||
| August 26 | "Dynamite" | Taio Cruz |
| September 2 | "Teenage Dream" | Katy Perry |
| September 9 | "For the First Time" | The Script |
| September 16 | ||
| September 23 | ||
| September 30 | "Written in the Stars" | Tinie Tempah featuring Eric Turner |
| October 7 | "Just the Way You Are" | Bruno Mars |
| October 14 | ||
| October 21 | ||
| October 28 | "Promise This" | Cheryl Cole |
| November 4 | "Only Girl (In the World)" | Rihanna |
| November 11 | ||
| November 18 | ||
| November 25 | "Heroes" | The X Factor Finalists 2010 |
| December 2 | ||
| December 9 | ||
| December 16 | "When We Collide" | Matt Cardle |
| December 23 | ||
| December 30 |