 Boyle was a Member of Parliament for a number of Irish constituencies.He became a Knight, Order of St. Patrick in 1808 and was Clerk of Pells in Ireland between 1808 and 1822.He also became a Privy Councillor and as well as being Earl of Shannon, he was also Viscount Boyle of Bandon, 2nd Baron Carleton and 3rd Baron of Castle Martyr.