Edward Francis Fahy (8 June 1922 – 24 June 2005) was an Irish physicist, academic and administrator whose long career was spent mostly at University College Cork (1952–1987). There he was head of the department of physics (1964–1987) and college Vice President (1976–1987). He also served as chair of the School of Cosmic Physics at the Dublin Institute for Advanced Studies (1970 to 1995).