|MacAlreavey||Very rare: Coleraine (Derry). Ir. Mac Giolla Riabhaigh. See Mac Areavy.|
|MacElreavy||rare: Antrim etc. As Mac Elrath.|
|MacIlreavey||Quite numerous: Antrim-Derry etc. Ir. Mac Giolla Riabhaigh. See Mac Areavey.|
Parishes where McIlreavy and a second surname are found together
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