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| Creenane | Very rare: Dublin, Cork. Ir. Ó Críonáin, (old wizened person). See also Crennan and Crinion. |
| Crennan | rare: Kilkenny etc. Ir. Ó Críonáin, from críon, old. See also Crinion. |
| Crinion | Quite numerous: Meath. Ir. Mac Críonáin. This may be a synonym of Crennan, q.v. |
| Mac Críonáin | Crinion: fíor-annamh: an Mhí. Féach Ó Críonáin. |
| Ó Críonáin | Crennan: annamh: Cill Chainnigh-Laois. Brí: críon = aosta, caite. |
Parishes where Crenan and a second surname are both baptised.
This list shows total Crenan Roman Catholic baptisms by county.
Click on the county to see detail.