Coláiste Eoin is a Catholic voluntary secondary Gaelcholáiste for boys, under the trusteeship of the Edmund Rice Schools Trust, in Booterstown, County Dublin, Ireland. It has hurling and Gaelic football teams, traditional Irish music bands, and Irish language debating teams. The school is financed by resources from the Department of Education and voluntary donations.

A Gaelscoil is an Irish language-medium school in Ireland: the term refers especially to Irish-medium schools outside the Irish-speaking regions or Gaeltacht. Over 50,000 students attend Gaelscoileanna at primary and second-level on the island of Ireland. Additionally, more than 13,000 students are receiving their primary and second level education through Irish in the Gaeltacht. Gaelscoileanna and Irish-medium schools in the Gaeltacht are supported and represented by Gaeloideachas and An Chomhairle um Oideachas Gaeltachta & Gaelscolaíochta or COGG in the Republic of Ireland and by Comhairle na Gaelscolaíochta in Northern Ireland. The largest patron body of Gaelscoileanna in the Republic of Ireland is An Foras Pátrúnachta, although the vast majority of schools under their patronage are at primary level.