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| MacGillion | fairly rare: Tyrone-Derry-Antrim etc. Variant of Mac Gillan, q.v. |
| MacGullion | Very rare: Fermanagh. Ir. Mac Gilleáin, dimin. of geal, bright. However, it may possibly be analogous with Gillan, q.v. |
Parishes where McGullian and a second surname are both baptised.
This list shows total McGullian Roman Catholic baptisms by county.
Click on the county to see detail.