List of best-selling singles and albums of 2003 in Ireland

This is a list of the best-selling singles and best-selling albums in Ireland in 2003.

Top selling singles

 * 1) "We've Got the World" – Mickey Joe Harte
 * 2) "Where Is the Love?" – The Black Eyed Peas
 * 3) "In da Club" – 50 Cent
 * 4) "Ignition (Remix)" – R. Kelly
 * 5) "Mandy" – Westlife
 * 6) "Lose Yourself" – Eminem
 * 7) "A Better Plan" – Simon Casey
 * 8) "White Flag" – Dido
 * 9) "All the Things She Said" – t.A.T.u.
 * 10) "Sound of the Underground" – Girls Aloud

Top selling albums

 * 1) Come Away with Me – Norah Jones
 * 2) Life for Rent – Dido
 * 3) Justified – Justin Timberlake
 * 4) Stripped – Christina Aguilera
 * 5) A Rush of Blood to the Head – Coldplay
 * 6) So Much for the City – The Thrills
 * 7) Dangerously in Love – Beyoncé
 * 8) Get Rich or Die Tryin' – 50 Cent
 * 9) Turnaround – Westlife
 * 10) Let Go – Avril Lavigne

Notes:
 * * Compilation albums are not included.