| FULL FORMS |
| GERMAN: Elfriede, Friederike |
|
| EQUIVALENTS |
| ANGLO-SAXON: Ælfþryð, Ælfthryth |
| DANISH: Frederikke, Rikke |
| ENGLISH: Elfreda, Elfrida, Elfrieda, Frederica, Freida, Frieda, Rica |
| FINNISH: Fredrika, Riika, Riikka |
| FRENCH: Frédérique |
| GERMAN: Frieda, Fritzi, Rike |
| ICELANDIC: Friðrika |
| ITALIAN: Federica |
| POLISH: Fryderyka |
| PORTUGUESE: Frederica |
| SWEDISH: Fredrika, Rika |
|
| MASCULINE FORMS |
| ANCIENT GERMANIC: Friduric |
| CZECH: Bedřich |
| DANISH: Frederik |
| DUTCH: Fred, Frederik, Freek, Frits, Rik |
| ENGLISH: Fred, Freddie, Freddy, Frederick, Fredric, Fredrick |
| FINNISH: Fredrik, Veeti |
| FRENCH: Fred, Frédéric |
| FRISIAN: Fedde |
| GERMAN: Fiete, Fred, Friedrich, Fritz |
| HUNGARIAN: Frigyes |
| ICELANDIC: Friðrik |
| ITALIAN: Federico, Federigo, Fredo |
| LATVIAN: Fricis, Frīdrihs |
| NORWEGIAN: Fredrik |
| POLISH: Fryderyk |
| PORTUGUESE: Fred, Frederico |
| SLOVENE: Friderik |
| SPANISH: Federico |
| SWEDISH: Fredrik |
|