| EQUIVALENTS |
| ANCIENT GREEK: Aikaterine |
| BASQUE: Katalin, Kattalin |
| BELARUSIAN: Katsiaryna |
| BRETON: Katarin, Katell |
| BULGARIAN: Ekaterina |
| CATALAN: Caterina |
| CROATIAN: Katarina |
| CZECH: Kateřina |
| DANISH: Cathrine, Katarina, Katharina, Kathrine, Katrine |
| DUTCH: Catharina, Katelijn, Katelijne, Katrien, Katrijn, Katrina |
| ENGLISH: Caetlin, Caitlin, Caitlyn, Catharine, Catherin, Catherina, Catherine, Cathleen, Cathryn, Kaitlin, Kaitlyn, Kaitlynn, Katelin, Katelyn, Katelynn, Katharine, Katharyn, Katherina, Katherine, Katheryn, Katheryne, Kathleen, Kathlyn, Kathryn, Katlyn, Katrina, Katriona |
| ESTONIAN: Kadri, Katariina, Katrin |
| FINNISH: Katariina, Katriina |
| FRENCH: Catherine |
| GALICIAN: Catarina |
| GEORGIAN: Ekaterine |
| GERMAN: Katarina, Katarine, Katharina, Katharine, Katherina, Katrin, Katrina |
| GREEK: Aikaterini, Ekaterini, Katerina, Katina |
| HAWAIIAN: Kakalina |
| HISTORY: Kateri |
| HUNGARIAN: Katalin |
| ICELANDIC: Katrín |
| IRISH: Caitlín, Caitlin, Caitria, Caitríona, Cathleen, Catrina, Catriona, Kathleen |
| ITALIAN: Caterina |
| LATE ROMAN: Katerina |
| LITHUANIAN: Kotryna |
| MACEDONIAN: Ekaterina, Katerina, Katina |
| MEDIEVAL FRENCH: Cateline |
| NORWEGIAN: Cathrine, Katarina, Katharina, Kathrine, Katrine |
| OCCITAN: Catarina |
| POLISH: Katarzyna |
| PORTUGUESE: Catarina |
| ROMANIAN: Cătălina, Catina, Ecaterina |
| RUSSIAN: Ekaterina, Jekaterina, Yekaterina |
| SARDINIAN: Caderina |
| SCOTTISH: Caitrìona, Catrina, Catriona |
| SERBIAN: Katarina |
| SLOVAK: Katarína |
| SLOVENE: Katarina |
| SPANISH: Catalina |
| SWEDISH: Catharina, Cathrine, Catrine, Katarina, Katharina, Katrin, Katrina |
| UKRAINIAN: Kateryna |
| WELSH: Catrin |
|
| DIMINUTIVES AND SHORT FORMS |
| BULGARIAN: Katerina, Katia, Katya |
| CROATIAN: Kata, Kate, Katica, Tina |
| CZECH: Katka |
| DANISH: Caja, Carina, Ina, Kaja, Karen, Karin, Karina, Katja, Trine |
| DUTCH: Cato, Ina, Karin, Katinka, Katja, Rina, Rini, Riny, Tina, Tineke, Trijntje |
| ENGLISH: Caelie, Caileigh, Cailin, Cailyn, Caleigh, Caren, Caryn, Cat, Cate, Cathy, Cayley, Kae, Kaelea, Kaelee, Kaelyn, Kaety, Kaila, Kailee, Kailey, Kailyn, Kaleigh, Kaley, Kalie, Kalyn, Karen, Karena, Karin, Karina, Karyn, Kat, Kate, Katee, Katey, Kathi, Kathie, Kathy, Katie, Katy, Kay, Kaye, Kayla, Kayleah, Kaylee, Kayleen, Kayleigh, Kayley, Kaylie, Kaylin, Kayly, Kaylyn, Kaylynn, Keighley, Keila, Kerena, Kit, Kitty, Trina |
| ESTONIAN: Kaia, Kaisa, Kaja, Kati, Riina, Triinu |
| FINNISH: Iina, Kaarina, Kaija, Kaisa, Karin, Kata, Kati, Katja, Katri, Riina |
| FRENCH: Carine, Karine |
| FRISIAN: Nienke, Nine, Nynke |
| GEORGIAN: Eka |
| GERMAN: Carina, Cathrin, Catrin, Ina, Karen, Karin, Karina, Käthe, Kathrin, Katinka, Katja |
| GREEK: Kaiti, Keti |
| HAWAIIAN: Kalena |
| HUNGARIAN: Kata, Katalinka, Kati, Katica, Katinka, Kató, Kitti |
| ICELANDIC: Karen |
| IRISH: Cáit, Ríona |
| ITALIAN: Catia, Katia, Katiuscia, Rina |
| LIMBURGISH: Ina |
| LITHUANIAN: Katrė |
| NORWEGIAN: Carina, Ina, Kaia, Kaja, Karen, Kari, Karin, Karina, Karine, Katja |
| POLISH: Karina, Kasia |
| PORTUGUESE: Cátia |
| RUSSIAN: Karina, Katenka, Katerina, Katia, Katya, Katyusha |
| SLOVAK: Katka |
| SLOVENE: Kaja, Katica, Katja |
| SPANISH: Lina |
| SWEDISH: Cajsa, Carin, Carina, Ina, Kai, Kaj, Kaja, Kajsa, Karin, Karina, Katja |
| UKRAINIAN: Katia, Katya |
| WELSH: Cadi |
|
| MASCULINE FORMS |
| ROMANIAN: Cătălin |
|
| OTHER RELATIONS |
| ENGLISH: Shayla, Tayla |
| GEORGIAN: Ketevan, Keti, Keto |
| GREEK MYTHOLOGY: Hekate |
|
