- Arts
- Seosamh Mac Grianna, writer
- Tommy McLaughlin, musician best known as a member of Villagers
- Niall Ó Dónaill, lexicographer
- Ray McAnally, actor
- John Nee, actor
- Politics
- John Logue, legal specialist and current President of the Union of Students in Ireland (USI)
- Senator Don Lydon, politician and psychologist
- Cormac Breslin, former Ceann Comhairle
- Neil T. Blaney, former minister and Father of the Dáil
- Jim McDaid, former minister
- Dessie Larkin, Town Councillor and former Town Mayor
- Joe McHugh, TD
- Paddy Harte OBE, former TD
- Media
- Paul Doherty, internationally renowned award-winning photographer
- Pat Gibson, multiple quiz winner and Seventh Egghead
- Tony O'Donnell, health expert
- Other
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- Sport
- Michael Murphy, All-Ireland winning inter-county and international rules footballer, captained the Donegal senior football team to victory in the 2012 All-Ireland Senior Football Championship Final
- Neil Gallagher, All-Ireland winning inter-county footballer, captained the Donegal senior football team to the 2007 National Football League title
- Colm McFadden, All-Ireland winning inter-county footballer
- Rory Kavanagh, All-Ireland winning inter-county footballer
- Dermot Brick Molloy, All-Ireland winning inter-county footballer
- Antoin McFadden, All-Ireland winning inter-county footballer
- Michael Boyle, All-Ireland winning inter-county footballer
- Kevin Rafferty, All-Ireland winning inter-county footballer
- Gary McFadden, All-Ireland winning inter-county footballer
- Ciaran Greene, inter-county footballer and soccer player
- Éamonn Doherty, inter-county footballer
- Martin Carney, RTÉ sports commentator and former inter-county footballer
- Brendan Devenney, former inter-county footballer
- Kevin McMenamin, former inter-county footballer
- Charlie Mulgrew, former All-Ireland winning inter-county footballer
- Tommy Ryan, former All-Ireland winning inter-county footballer
- Philip Deignan, professional cyclist and Olympian
- Conrad Logan, goalkeeper with Leicester City and Stockport County
- Christy Conaghan, footballer with Finn Harps and Fanad United
- Gary Crossan, long distance runner
- Ecclesiastical
- Séamus Hegarty, former Bishop of Raphoe
- John Dominic Crossan, liberal theologian and co-founder of the Jesus Seminar
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