Etymology

McCullough

M3C3C3U1L1L1O1U1G2H4

Today it means: A surname from Irish; variant forms McCalla, McColley, McCollough, McCullagh, McCullah, McCulloch, McCulloh, McCully. Full definition →

Irish Mac Cú Uladh
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The story

  1. Irish · derived fromMac Cú Uladh
  2. English todayMcCullough

Anglicized form of Irish Mac Cú Uladh.

Etymology from Wiktionary, CC BY-SA 4.0.