John Ahern (bishop)

John J. Ahern DCL, STL, (1911–1997) was an Irish Roman Catholic clergyman, who served as Bishop of Cloyne from 1957 until 1987.

Born in 1911, a native of Leamlara, near Midleton, County Cork, Ahern was ordained in 1936. He was appointed professor of canon law at Maynooth College in 1946. In 1956, he was appointed to the see of Cloyne. He was a council father at the Second Vatican Council.

Ahern retired as bishop in 1987 and died on 25 September 1997. Bishop John Magee succeeded him at Cloyne. The National School in Leamlara, which succeeded the one he attended, is named in his honour.