Cognomen Биргит (Birgit 
, Birgitt , Birgita 
) , in the entire world, is quite a rare family name. The cognomen Биргит is habitual in Liechtenstein, where it is quite a common surname, Austria, where it is quite a rare surname, and Spain. In absolute terms, it is commonest in Germany, Spain, and Austria. Much more prevalently, Биргит is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Birgit, Birgitt | Germany, Denmark, Sweden, United States, Austria |
| Birgita | Netherlands, Germany, Indonesia, Sweden, United States |
| Биргит | Kazakhstan, Russia |