Ofelia Rey Castelao (born 1956) is a Galician historian, writer, and university professor.

[6] In 1984, her doctoral thesis (El voto de Santiago en la España moderna (The vote of Santiago in modern Spain), presented at the same university, was awarded "outstanding cum laude", and she received again the Extraordinary Prize.

[6] Between 1990 and 2005, she was director of the journal Obradoiro de Historia Moderna (Workshop of modern history).

[5] From January 2006 to October 2009, she was the Coordinator of History and Art at the Agencia Nacional de Evaluación y Prospectiva.

[5] She has published twelve books and more than 100 chapters and articles, as well as papers at national and international conferences.