The Boyle Surname Project maps genetic variations for Boyle clans by documenting the Y-chromosome markers of male descendants. The genetic information may suggest new avenues for your genealogical research - or rule out dead ends. Click on the link above to learn more, sign up for the project by filling out the form below, or contact email@example.com for more information. Updated June 25, 2015. (taken from http://genealogy.about.com/od/surname_meaning/p/boyle.htm ) BOYLE Last Name Meaning & Origin: A variant of O'BOYLE, from the Irish Ó BAOGHILL. Of uncertain derivation, but the Boyle last name is considered by most to be connected to the Irish geall, meaning "pledge" or "vain pledge," or thought to mean "having profitable pledges." The O'Boyles were chieftains in Donegal, ruling west Ulster with the O'Donnells and the O'Doughertys. Boyles can also be found in Kildare and Offaly. BOYLE is one of 50 common Irish surnames of modern Ireland, as well as the 84th most popular last name in Scotland. Surname Origin: Irish, Scottish Alternate Surname Spellings: BOYLES, O BOYLE, O BAOIGHILL, O BAOILL Clan Boyle: Clan Boyle in Scotland originated with Anglo-Norman knights bearing the de Beauville or, more commonly, de Boyville name from Beauville, near Caen. They are believed to have arrived in Scotland after the Norman conquest of England in 1066. There is a record of a David de Boivil witnessing a charter as early as 1164.