Gahan (surname) Irish language "Mac Gaoithín", meaning "son of "Gaoithín"", although the more common Anglicised form of this Gaelic name is "McGeehan" in Ulster. Gahan (surname) Gahan (and its variant Gahame) is a surname with several different origins. One origin of the surname is from a reduced form of "McGahan", which is in turn an Anglicised form of the Irish language "Mac Eacháin", meaning "son of "Eachán"". Another origin of the name, in Leinster, is from a reduced form of the Irish language "Ó Gaoithin", meaning "descendant of "Gaoithín"". The personal name "Gaoithín" is a diminutive of "gaoth", meaning "wise", or "wind".
Campbell (surname) derivation, from the surname Mac Cathmhaoil. Descendants of a famous war-leader ("Cathmhaoil" means "battle chief") took the surname, which was often pronounced "Cammel". This coincided with the pronunciation of the Scottish surname "Campbell", and was therefore anglicised to the same spelling. From this Irish surname, a number of derivations were derived including MacCawill, McCaul, MacCall, Caulfield, and of course Campbell. Campbell Killian famous Kiltormer man. Campbell (surname) Campbell is primarily a Scottish surname of Gaelic origins. In Scotland, the name itself derives from two Scottish Gaelic words. "Cam" (crooked) and "Beul" (mouth) meaning "Crooked mouth" or "wry-mouthed", originally a nickname