Sheehan Family History
Sheehan Name Meaning
Irish (Cork): shortened form of O'Sheehan an Anglicized form of Gaelic Ó Síodhacháin ‘descendant of Síodhachán’ a personal name representing a diminutive of síodhach ‘peaceful’ the same word as sítheach. Compare Sheehy .
Source: Dictionary of American Family Names 2nd edition, 2022