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| Clanachan | Very rare: Enniskillen. See Clenaghan. |
| Clenaghan | fairly rare: E Ulster. Ir. Mac Leannacháin. Leann is a cloak or mantle. A name located in Tyrone 16 cent. SI &MIF. |
| Mac Leannacháin | Mac Clenaghan: líonmhar: Ulaidh. Clann a bhain le tír na Niallach, Tír Eoghain agus Doire, sa 16 céad. Fréamh: leannach: le clócaí, fallaingí. MIF. |
| MacClenaghan | numerous: Ulster generally, especially East. Ir. Mac Leannacháin from leannach, having cloaks. Historically associated with Tyrone. MIF. |
| MacLenaghan | rare: Derry etc. Ir. Mac Leannacháin. A name associated with the O'Neill country (Tyrone-Derry). See Mac Clenaghan. MIF. |
Parishes where a McGlenaghan and a second surname married each other.
This list shows total McGlenaghan Roman Catholic marriages by county.
Click on the county to see detail.