John Cavanagh may refer to:
John Cavanagh (archer) (born 1956), British Paralympian John Cavanagh (designer) (1914–2003), London-based Irish fashion designer John Cavanagh (economist) (born 1955), Director of the Institute for Policy Studies in Washington, D.C., 1998–2021 and a founding fellow of the Transnational Institute John Cavanagh (fives player) (died 1819), Irish sportsman John Cavanagh (hatter) (1864–1957), New York hatter, mayor of Norwalk, Connecticut
See also John Kavanagh (disambiguation) John Cavanaugh (disambiguation) Jack Kavanagh (disambiguation)