The Irish broadcaster TG4 is responsible for organising their entry for the contest through a national selection show entitled Junior Eurovision Éire.

[1] TG4 previously attempted to participate at the Junior Eurovision Song Contest 2014, but required funding from the Broadcasting Authority of Ireland (BAI), which was rejected.

[3] TG4 published details on the names of the professional jury who would determine the winner of the Junior Eurovision Éire 2017 and the representative for Ireland at the 2017 contest in November.

After their second performances, the jury members selected Muireann McDonnell as the winner of semifinal 1 and advanced to the grand final on 19 November 2017.

After their second performances, the jury members selected Gwanaelle Noval as the winner of semifinal 2 and advanced to the grand final on 19 November 2017.

Úna Ní Mhistéil and Holly Owens both advanced to the final duel stage and performed their songs for the second time.

After their second performances, the jury members selected Úna Ní Mhistéil as the winner of semifinal 3 and advanced to the grand final on 19 November 2017.

After their second performances, the jury members selected Sinéad Carr as the winner of semifinal 4 and advanced to the grand final on 19 November 2017.