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| Berney | Quite numerous: S.E.Leinster. Ir. Mac Biorna. This is a Scottish name usually appearing as MacBirney in Ulster. However, the prevalence of Berneys around the O'Byrne country would suggest a connection with them. |
| Birney | Quite numerous: Ulster. Ir. Mac Biorna. Scottish, of Norse derivation but also from Birnie in Moray. SGG & SS. |
| Birnie | rare: Belfast area. See Birney. |
| Mac Biorna | Mac Birney, Burney: líon beag in Ulaidh. De bhunadh Albanach iad agus baineann an sloinne leis an ainm Lochannach Bjarni. |
| MacBernie | Very rare: Derry. Variant of Mac Birney, q.v. |
| MacBirney | rare: Armagh. Ir. Mac Biorna, Scots with name of Norse origin. Relatively recent in Ulster. |
| MacBurney | numerous: E Ulster. Ir. Mac Biorna, Scottish from a Norse name and in Ireland 19 cent. See also Mac Birney. |
Parishes where Birney and a second surname are both baptised.