O'Regan can refer to:

Places

*O'Regan's, Newfoundland and Labrador, a village in Newfoundland, Canada

People

*Brian O'Regan (disambiguation), several people *Daniel O'Regan, New Zealand rugby league player *Danny O'Regan, American ice hockey player *Denis O'Regan, photographer *Dylan O'Regan, Irish American martial artist and submission grappler *Hana O'Regan, New Zealand Maori activist *J. Kevin O'Regan, psychologist interested in phenomenal consciousness *Kate O'Regan, South African lawyer and judge *Katherine O'Regan, New Zealand politician *Mark O'Regan, New Zealand judge *Michael O'Regan, co-founder of Research Machines *Patrick O'Regan (politician), Patrick O'Regan, New Zealand politician and jurist *Rolland O'Regan, New Zealand politician and surgeon *Seamus O'Regan, Canadian politician and former broadcast journalist *Susan O'Regan, New Zealand politician *Tarik O'Regan, British composer *Tipene O'Regan, New Zealand politician and educator *Thomas O'Regan, Australian academic

Figures in the Catholic Church

*Anthony O'Regan, Catholic bishop *Cyril O'Regan {{surname