T. F. O'Rahilly

Thomas Francis O'Rahilly
Tomás Ó Rathile
Born(1882-11-11)11 November 1882
Died16 November 1953(1953-11-16) (aged 71)
Known forWork in Goidelic phonology, historical linguistics
SpouseMary Buckley
Academic background
EducationUniversity College Dublin
Academic work
DisciplineLinguistics, Celtic studies
Notable worksIrish Dialects Past and Present: With Chapters on Scottish and Manx

Thomas Francis O'Rahilly (Irish: Tomás Ó Rathile; 11 November 1882 – 16 November 1953) was an influential Irish scholar of the Celtic languages, particularly in the fields of historical linguistics and Irish dialects. He was a member of the Royal Irish Academy and died in Dublin in 1953. He is the creator of O'Rahilly's historical model, which has since been discredited.