Berrill or Birrell - Boireil - Anglo Norman origins. They have been in Ireland since the Anglo - Norman Invasion in the 12th Century AD in Co. Louth in the north - east of Northern Leinster.

Berry - English origins. Used as a variant for Bury, which see, in Ireland since the 17th Century AD. Used also as a synonym for Beary, which see, in Co. Offaly in the north - west of Southern Leinster.

Best - beast - in charge of cattle - English origins. They came from Kent and were in the Leinster Province in the 17th Century AD especially in Co. Carlow in Southern Leinster and the surrounding regions.

Best - English origins. Recent arrivals they were in Co. Antrim, Co. Armagh & Co. Tyrone in the Ulster Province.

Beston - English toponymic origins. They have been in Co. Limerick and in the east of Co. Clare in the north - west of the Munster Province since the 16th Century AD.

Mac Betagh - Irish - Mheic Biataigh. A Sept - Family branch - who had their territory in Co. Meath in the south - east of Northern Leinster. See also Beatty.

Mac Beth or Mac Beath - Scottish Highland origins. Gaelic Irish - Mheic Beatha / beatha - life. Often confused with Mac Veagh & Mac Evoy, which see, in the Ulster Province.

Bethel / ap Ithel - Welsh origins. They have been in the Ulster Province since the Mid - 17th Century AD.

Betty - Used as a variant for Beatty, which see, and both were also used as synonyms for Mac Caffrey, which see, in Co. Fermanagh in the south - west of the Ulster Province.

Bhaird - Irish - Mheic an Ward - (Descended from a son of the Bard) -

O Biggane or O Biggins - Irish - Ua Beagain - Ua Bigin - beag - little. A Sept - Family branch - who had their territory in the Munster Province who are now known as Little & Littleton. Also known as Beggane in Co. Monaghan in Southern Ulster and Biggins in Co. Mayo in the mid - west of the Connacht Province.

O Biggy - Irish - Ua Bigigh - beag - small. A Sept - Family branch - who had their territory in Co. Mayo in the mid - west of the Connacht Province.

Binchy - English origins. They came into Ireland in the Mid - 17th Century AD and were at Charleville and the surrounding region in the north of Co. Cork in Southern Munster.

Bingham - English toponymic origins. They were originally in Co. Mayo in the mid - west of the Connacht Province where is Binghamstown but are now in the Ulster Province.

Birch - Locative name. They were in Co. Offaly in the north - west of Southern Leinster in the Mid - 17th Century AD.

Bird - Irish - Mheic an Deaghanaigh -(Descended from a son of the Dean) Anglicized incorrectly from ean - bird - by the Irish O Heaneys, O Hegneys, O Henaghans & Mac Eneanys, which see.

De Birmingham - Anglo Norman origins (Descended from Piers de Bermingham) Gaelicized to Mac Fheorais (Descended from a son of Piers) and also anglicized to Corish. They were in Co. Louth in the north - east of Northern Leinster. English Barons in Co. Galway in Southern Connacht.English Barons in Co. Kildare in Central Leinster. See also Bermingham.