List of artists who reached number one in Ireland

This is an complete list of recording artists who have reached number one on the Irish Singles Chart.

U2 hold the record for the most number-ones songs. Michael Jackson holds the record for the most number-one songs by a male artist, while Madonna, Britney Spears and Rihanna are tied the record for a female artist.

• All acts are listed alphabetically.
• Solo artists are alphabetized by last name (unless they use only their first name, e.g. Akon, listed under A), Groups by group name excluding "A," "An" and "The."
• Featured artists that have been given credit on the record are included