CodyIrish Anglicized form of Irish Ó Cuidighthigh meaning "descendant of Cuidightheach". A famous bearer was the American frontiersman and showman Buffalo Bill Cody (1846-1917).
DevlinIrish Anglicized form of the Irish Ó Doibhilin meaning "descendant of Doibhilin", a given name that may be derived from the Gaelic term dobhail meaning "unlucky".
DonovanIrish Anglicized form of the Irish name Ó Donndubháin meaning "descendant of Donndubhán".
DouglasScottish Anglicized form of Gaelic Dubhghlas, which meant "dark river" from dubh "dark" and glais "water, river" (an archaic word related to glas "grey, green"). This is the name of various places in Scotland, such as a tributary of the River Clyde.
DoyleIrish From the Irish Ó Dubhghaill, which means "descendant of Dubhghall". A famous bearer was Sir Arthur Conan Doyle (1859-1930), the author of the Sherlock Holmes mystery stories.
LennonIrish Anglicized form of the Irish name Ó Leannáin, which means "descendant of Leannán". The given name Leannán means "lover". The name was borne by the musician John Lennon (1940-1980).
MacGregorScottish Anglicized form of Gaelic Mac Griogair meaning "son of Gregor". It originates from the Highland clan Gregor. A famous bearer was the Scottish folk hero Rob Roy MacGregor (1671-1734).
MacKenzieScottish Anglicized form of the Gaelic Mac Coinnich meaning "son of Coinneach". It originates from the Kintail area of Scotland on the northwest coast.
TaggartIrish, Scottish Anglicized form of Irish Mac an tSagairt meaning "son of the priest". This name comes from a time when the rules of priestly celibacy were not strictly enforced.
TeaganIrish Anglicized form of Irish Ó Tadhgáin meaning "descendant of Tadhgán".
Teague 1Irish Anglicized form of Irish Ó Taidhg meaning "descendant of Tadhg".