An Irish and Scottish surname, McCullough comes from the Gaelic term ‘cullach’ which means a wild boar. The spelling variations for McCullough include MacLulich, MacCullagh, MacCulley, MacCully, MacCullock and MacCullaugh. In England the McCullough surname is lightly scatted in different locations in the country. Most with the McCullough surname reside in Lancashire and Durham counties. In Scotland the McCullough family name is mostly found in Angus, Fife, Renfrewshire and Lanarkshire counties. Within the United States the McCullough families originated in Pennsylvania, Ohio, Illinois, New York, South Carolina, Tennessee, Georgia, Mississippi, Texas and Missouri. Famous: Bernie McCullough (actor and comic), Henry Eustace McCullough (Civil War Confederate Brigadier General), Jimmy McCullough (Scottish musician), Julie McCullough (actress and model), Clyde McCullough (professional baseball player of Ireland), Colleen McCullough (author from Australia) and John Edward McCullough (19th century actor).