All-Ireland

thumb|The Four Provinces Flag of Ireland contains the flags of Ireland's four traditional constituent provinces: (clockwise, from the top left) [[Munster, Connacht, Leinster, and Ulster]]

All-Ireland (sometimes All-Island) is a term used to describe organisations and events whose interests extend over the entire island of Ireland, as opposed to the separate jurisdictions of the Republic of Ireland and Northern Ireland. "All-Ireland" is most frequently used to refer to sporting teams or events for the entire island, but also has related meanings in politics and religion.