Between 1931 and 1936 Moore made 9 appearances and scored 7 goals for the FAI XI. He made his international debut for the FAI XI on 26 April 1931 against Spain. Together with Tom Farquharson, Peter Kavanagh, Jeremiah Robinson and Charlie Dowdall, Moore was part of an FAI XI that gained a respectable 1–1 draw at the Montjuic Stadium in Barcelona. Moore marked his debut by scoring the FAI XI's goal. He gave the visitors the lead in the 35th minute when he received a pass from John Joe Flood and then found himself in a one against one situation with the legendary Spanish goalkeeper, Ricardo Zamora. Moore coolly lobbed the ball over the advancing Zamora and into the back of the goal. The goalkeeper subsequently tore off his shirt in disgust and threw it into the back of the net, suffering the derision of his own fans.