What does O'Brien mean?
(male) O'brion, O'brios, ..
(female) O'briana, O'brina, .. Middle name pairings:
O'Brien Morrison (O.M.), ..
How popular is O'Brien?
O'Brien is a rare first name for men. O'Brien is an equivalently unique surname too for both adults and children. (2000 U.S. Census)
Which version is better?with its source form and related boy names. Below is a graphed study of the history of O'Brien and corresponding names. Brian (#189 from recent data), Brien and Brion are the prominent related forms of O'Brien (not ranked) ranked in the Top 2000. These relations of O'Brien were at the top of their popularity during 1970-1979 (usage of 1.96%) and have become significantly less popular since (usage 0.12%, ▼94.1%), with the form Brian becoming less trendy. (2015 Birth Statistics)
Similar NamesRecommended names are Adrien▲, Arien, Aydrien, Bren, Ciprien, Cyprien, Darien▼, Darrien, Dorien, Dorrien, Florien, Hadrien, Oren, Oriel, Orin, Orion▲, Orren, Orrin, Orsen and Siprien. These names tend to be more commonly used than O'Brien.See names in meaning and etymology.