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| Gargan | fairly numerous: Midlands etc. Ir. Ó Geargáin, gearg = fierce. Originally of Breifne and also occurring as Mac Geargáin. |
| Kirgan | Very rare: Antrim. |
| Mac Ciaragáin | Mac Kergan: annamh: Aontraim. Níltear cinnte faoin leagan Gaelach seo. |
| MacKergan | rare: Antrim. Ir. ? Mac Ciaragáin. See Kerrigan. |
Parishes where McGorgan and a second surname are both baptised.