OBrislain
OBrislain is a surname of Irish origin. It is an anglicized form of the Gaelic Ó Brisleáin, meaning "descendant of Brisleán." The personal name Brisleán itself is believed to derive from the word "bris," meaning "to break" or "to shatter." Historically, the O'Brislain sept was associated with the province of Munster in Ireland, particularly in areas that are now counties Cork and Limerick.
Like many Irish surnames, O'Brislain faced anglicization over centuries, leading to variations in spelling. While O'Brislain