John Ahern may refer to:
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John Ahern (footballer)
John Ahern (born 10 September 1970) is a former professional Australian rules footballer who played for Melbourne Football Club in the Victorian Football League (VFL).
Recruited from Melbourne High School Old Boys Association, Ahern made his ...
(born 1970), Australian rules footballer
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John Ahern (politician) (1934–2020), American politician
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John E. Ahern (1897–1969), Canadian politician
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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 profe ...
(1911–1997), Irish Roman Catholic bishop
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John H. Ahern (1903–1961), British railway modeller and photographer
{{hndis, Ahern, John