Ireland in the Quackvision Song Contest 01

Background
Main Article: Ireland

Ireland was announced to be one of the countries that were confirmed to participate in the inaugural edition of the Quackvision Song Contest, with lymonics as their head of delegation for the edition. As with all the other countries competing in this edition, it was their official debut in the contest.

Internal Selection
Orla Gartland was announced to be the representative for Ireland for the first edition of the Quackvision Song Contest, being the tenth song to be revealed for the contest. The song was revealed to be "codependency", a song sung entirely in English.

Grand Final
Nearing the end of the Song Reveal period for the edition, the Quackvision Event 01 revealed the halves that the contestants would be performing in, with the final running order being revealed on 31 July 2021. For the show, Ireland was placed in the first half, performing ninth, following the entry from San Marino and preceding the entry from the U.S. Virgin Islands. They were one of three countries that did not perform, as their Head of Delegation (lymonics) was unable to join the game to perform in time. At the end of the show, Ireland placed eleventh in the final, scoring 81 points: 35 from the televote (11th) and 46 from the juries (12th).