The best selling album in 2012 in Ireland was NOW THAT'S WHAT I CALL MUSIC! 83 by NOW SERIES (UK).
| Rank | Artist | Album | Released |
| 1 | NOW SERIES (UK) | NOW THAT'S WHAT I CALL MUSIC! 83 | 2012 |
| 2 | ONE DIRECTION | TAKE ME HOME | 2012 |
| 3 | ED SHEERAN | + | 2011 |
| 4 | EMELI SANDE | OUR VERSION OF EVENTS | 2012 |
| 5 | NOW SERIES (UK) | NOW THAT'S WHAT I CALL MUSIC! 82 | 2012 |
| 6 | LANA DEL REY | BORN TO DIE | 2012 |
| 7 | ADELE | 21 | 2011 |
| 8 | ONE DIRECTION | UP ALL NIGHT | 2011 |
| 9 | NOW SERIES (UK) | NOW THAT'S WHAT I CALL MUSIC! 81 | 2012 |
| 10 | RIHANNA | UNAPOLOGETIC | 2012 |
| 11 | NOW SERIES (UK) | NOW THAT'S WHAT I CALL RUNNING | 2012 |
| 12 | MUMFORD & SONS | BABEL | 2012 |
| 13 | MICHAEL BUBLÉ | CHRISTMAS | 2011 |
| 14 | THE SCRIPT | #3 | 2012 |
| 15 | BRUCE SPRINGSTEEN | WRECKING BALL | 2012 |
| 16 | DAVID GUETTA | NOTHING BUT THE BEAT | 2011 |
| 17 | FLORENCE + THE MACHINE | CEREMONIALS | 2011 |
| 18 | OLLY MURS | RIGHT PLACE RIGHT TIME | 2012 |
| 19 | NOW SERIES (UK) | NOW THAT'S WHAT I CALL CHRISTMAS | 2012 |
| 20 | ROD STEWART | MERRY CHRISTMAS, BABY | 2012 |
Source: IRMA