| Czech Republic | Kateřina |
| Denmark | Catharina |
| Estonia | Kaarin, Kadi, Kadri, Kadrin, Karin, Katariina, Kati, Katre, Katri, Katrin, Triin, Triina, Triinu |
| Finland | Kaarina, Kaija, Kaisa, Kaisu, Katariina, Kati, Katja, Katri, Katriina, Riina |
| Finland-Swedish | Carina, Kajsa, Karin, Katarina, Katja, Katrina |
| France | Catherine |
| Hungary | Katalin |
| Latvia | Kadrija, Kate, Katrīna, Katrīne, Trīne |
| Lithuania | Germilė, Kotryna, Santautas |
| Norway | Kari, Katarina, Katrine |
| Poland | Katarzyna, Tęgomir |
| Sweden | Katarina, Katja |