Family name Friðrika (Friðrika 
) , in the entire world, is an extremely rare cognomen. Predominantly, Friðrika is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Friðrika | Iceland |
Bedriska, Bedřiška, Federica, Frederica, Frederika, Frederique, Fredrika, Friderica, Friderika, Fridrika, Friederike, Fryderyka, Frédérika, Frédérique, Riikka, Ulrica, Ulrika, Ulrike, Ulrikke, Ulryka, Φρειδερίκη, Риикка, Ульрика, Ульрике, Федерика, Фредерик, Фредерика, Фредрика, Фридерика, Фридрика, פרידריקה, ウルリカ, フェデリカ, フレデリック, and 弗雷德里克
Ásmundsdóttir, Geirsdóttir, Marteinsdóttir, and Stefánsdóttir