The Irish participating broadcaster, Radio Telefís Éireann (RTÉ), selected its entry through a national final.
A special tiebreak jury was called to determine the winner, choosing "Could It Be That I'm in Love".
"Could It Be that I'm in Love" was performed eleventh in the running order on the night of the contest, following Turkey and preceding Portugal.
At the close of the voting sequence, Ireland had 47 points, tying them with the United Kingdom for tenth place.
RTÉ appointed Eileen Dunne as its spokesperson to announce the Irish jury vote.