The surname is derived from the original Irish name O Doirbheain.
The surname Dervan was first found in County Roscommon (Irish: Ros Comáin) located in central Ireland in the province of Connacht, where it was listed in a Tudor Fiant as O'Durvin. In a sixteenth century Fiant for the barony of Rathconrath in County Westmeath, the name is O Dirrevane.
This web page shows only a small excerpt of our Dervan research. More information is included under the topic Early Dervan History in all our PDF Extended History products and printed products wherever possible.
Spelling variations of this family name include: Dervan, O'Dervan, Dervin, Dervine, Derwin and many more.
More information is included under the topic Early Dervan Notables in all our PDF Extended History products and printed products wherever possible.