Tynan Family History
Tynan Surname Meaning
Irish (Laois and Kilkenny): shortened Anglicized form of Gaelic Ó Teimhneáin ‘descendant of Teimhneán’ which is probably derived from a diminutive of Old Irish teimhean ‘dark’.
See Teevan.
Source: Dictionary of American Family Names 2nd edition, 2022
