Etymology

McGannon

M3C3G2A1N1N1O1N1

Today it means: A surname from Irish. Full definition →

Irish Mag Fhionnáin
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The story

  1. Irish · derived fromMag Fhionnáin“son of Fhionnán”
  2. English todayMcGannon

Anglicized form of Irish Mag Fhionnáin (“son of Fhionnán”), a personal name from a diminutive of fionn (“white, fair”). Compare McLennan.

Etymology from Wiktionary, CC BY-SA 4.0.