Geoffrey Browne (died 14 January 1668) was an Irish lawyer and politician. Browne was a son of Sir Dominick Browne and Anastasia Darcy, both members of the Tribes of Galway. He was a nephew to Patrick D'Arcy (1598–1668), the Confederate lawyer who wrote the constitution of Confederate Ireland, and son-in-law of Sir Henry Lynch, 1st Baronet, agent to Richard Burke, 4th Earl of Clanricarde. In 1640 he was elected M.P. for Athenry and was actively involved in the parliament's affairs in the period leading up to the Irish Rebellion of 1641, including one to England in late 1640.