Thomas Drennan

Thomas Drennan (1696–1768) was an Irish Presbyterian minister active in advocating political and religious reforms.

Drennan graduated from the University of Glasgow, and served as Presbyterian minister in Holywood and in Belfast. He was one of several Irish reformers who influenced Scottish Enlightenment philosopher Francis Hutcheson, during the latter's time as master of an academy in Dublin. Drennan's son, William Drennan, would become a famous physician, poet, and political radical.