Meaning and Origin of: Sheehan

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First name origins & meanings:

  • Gaelic : Little peaceful one

First name variations

Last name origin & meaning:

  • Irish : reduced 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.