Ilario Cortesi, C.R. (1545 – September 1608) was a Roman Catholic prelate who was Bishop of Policastro (1605–1608). Cortesi was born in Naples, Italy, and ordained a priest in the Congregation of Clerics Regular of the Divine Providence. On 10 October 1605, he was appointed by Pope Leo XI as Bishop of Policastro. He served as Bishop of Policastro until his death.
