Cornelius O'Boyle c. 1547– 1591) was an Irish Roman Catholic prelate who was Bishop of Limerick from 1582 to 1591.

[1] O'Boyle was a priest of the diocese of Armagh when he was appointed bishop of Limerick by Pope Gregory XIII.

In Spain he corresponded with churchmen about the ongoing Second Desmond Rebellion.

It is not known if O'Boyle ever visited Ireland after his consecration as all subsequent information about him points to his living in Spain.

This article about an Irish Catholic bishop or archbishop is a stub.