Meaning and Origin of: Gannon

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First name origins & meanings:

  • Irish : Fair complexion

First name variations

Last name origin & meaning:

  • Irish : reduced Anglicized form of Gaelic Mag Fhionnáin, a patronymic from the personal name Fionnán. This name, from a diminutive of fionn ‘white’, ‘fair’, was borne by several early Irish saints.