Last name Брайен (Brien 
, Брайен 
, Breien 
) , in the world, is a common family name. The family name Брайен is habitual in Ireland, where it is a common surname, Cyprus, where it is quite a rare surname, and Australia. In absolute terms, this name is the most popular in Ireland, the United States, and Canada. Very seldom, Брайен is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Brien | United Kingdom, Australia, Ireland, United States, Canada |
| Брайен | Ukraine, Russia |
| Breien | Sweden, Norway, Philippines, United States, Canada |