| EQUIVALENTS |
| ANCIENT SCANDINAVIAN: Birgir |
| DANISH: Birger |
| ICELANDIC: Birgir |
| NORWEGIAN: Birger |
| SWEDISH: Birger |
| OTHER FORMS |
| DANISH: Berit, Birgit, Birgitta, Birgitte, Birte, Birthe, Brita, Britt, Britta, Gitte |
| FINNISH: Birgitta, Brita, Piritta, Pirjo, Pirkko, Priita, Riitta |
| GERMAN: Birgit |
| ICELANDIC: Birgitta |
| NORWEGIAN: Berit, Birgit, Birgitta, Birgitte, Brit, Brita, Britt, Britta |
| SWEDISH: Berit, Birgit, Birgitta, Börje, Brita, Britt, Britta, Gittan |