Nicholas Dominick Ryan (born 1949 in Dublin, Ireland) is an Irish music producer, recording engineer and manager for the musician Enya. He previously managed the Irish group Clannad, the band with which Enya first performed. In 1982, when Nicky Ryan left Clannad, Enya followed him. In the video documentary Enya - A Life in Music, Enya states that it was Nicky who first had the idea of layering Enya's voice, thus creating Enya's distinctive style.