Surname Биер (Bier 
, Byer , Biyer 
) , globally, is a common last name. The surname Биер is habitual in Latin America and the Caribbean, particularly Barbados, where it is quite a common surname, Saint Lucia, and Trinidad and Tobago, where it is quite a rare surname. Not in comparison with a country's population, it is the most numerous in the United States, Germany, and Brazil. Much less frequently, Биер is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Bier, Byer | Canada, Brazil, France, Germany, United States |
| Biyer | United Kingdom, United States, Canada |
| Биер | Kazakhstan, Russia |