For background on how the map was made (and its flaws), see the relevant blog entry.
| Degnan | rare: Antrim. See Deignan. |
| Deighnan | fairly rare: Connacht, Belfast area (Deignan). Ir. Ó Duibhgeannáin (dark head). See Duignan which relates to Roscommon. SGA gives Ó Duígeannáin as the modern version. |
| Dignam | fairly numerous: Dublin etc. See Duigenan. |
| Dignan | rare: scattered. See Duigenan. |
| Duignan | fairly numerous: Midlands, E Connacht. Ir. Ó Duibhgeannáin. Derivation possibly similar to Duffin. They were a noted literary family of Roscommon. SGG. |
| Ó Duibhgeannáin | Duignan (-m): cuíosach líonmhar: Lár na Tíre & oirthear Chonnacht. Clann liteartha i Ros Comáin & Liatroim a b'ea iad. Brí: dubh + ceann. MIF & SGG. |
DEDs where Duignam and a second surname are found together
This list shows total 1901 Duignam households by county.
Click on the county to see detail.
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