Family name Friderica (Friderica 
, Фридерика 
, Федеріка 
) , worldwide, is a very rare last name. The surname Friderica is habitual in Israel, where it is a rare surname, and Venezuela, where it is an extremely rare surname. More frequently, Friderica is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Friderica | Germany, Israel, United States, Brazil, Venezuela |
| Фридерика | Kazakhstan, Russia |
| Федеріка | Ukraine |
| Федерика | Russia |
Bedriska, Bedřiška, Federica, Federika, Frederica, Frederika, Frederique, Fredrika, Friderika, Fridrika, Friederike, Friðrika, Fryderyka, Frédérika, Frédérique, Riikka, Ulrica, Ulrika, Ulrike, Ulrikke, Ulryka, Φρειδερίκη, Риикка, Ульрика, Ульрике, Фредерик, Фредерика, Фредрика, Фридрика, פרידריקה, ウルリカ, フェデリカ, フレデリック, and 弗雷德里克