John Boyle (1563?–1620) was an English Protestant bishop in Ireland.
He was born in Kent about 1563, the son of Roger Boyle and Joan Naylor, and the elder brother of Richard Boyle, 1st Earl of Cork.
Through the interest and pecuniary assistance of his brother the Earl of Cork, and other relatives, he was, in 1617 appointed Bishop of Cork, Cloyne and Ross, the consecration taking place in 1618.
He died at Cork on 10 July 1620, and is laid to rest with his brother Richard in an impressive tomb in St Mary's Collegiate Church at Youghal.
[2] He left a daughter, Barbara, who married firstly Sir John Browne of Hospital, County Limerick, who was killed in a duel, and secondly Colonel John FitzGerald.