John de Courcy (1160–1219), was a Norman English noble.
John de Courcy may also refer to:
- John de Courcy, one of several men with the title Baron Kingsale in the Peerage of Ireland
- John Fitzroy de Courcy, 31st Baron Kingsale (1821–1890), colonel of the 16th Ohio Infantry
- John de Courcy, 35th Baron Kingsale (1941–2005), the Premier Baron of Ireland
- John de Courcy Ireland (1911–2006), Irish historian and activist
- John Edmund de Courcy, English bishop in Ireland
This disambiguation page lists articles about people with the same name.
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