In addition to being a venerable, versatile, timeless classic, Katherine also seems to be tied with Elizabeth as having the most nicknames, both in English and many other languages. It also has options for child-like nicknames vs. more grownup nicknames the bearer can eventually graduate to.
1. Kate/Cate is a nickname that works well on all ages.
2. Katie/Katy/Kati suggests a more youthful Katherine, the kind of nickname a young girl would go by before graduating to Kate.
3. Kathi/Kathie/Kathy/Cathy/Cathie might seem a bit dated now, since so many Boomer women have that nickname, but I’ve never found it intrinsically middle-aged. It helps when you’ve known people your age with a name more commonly associated with an older generation.
4. Kay/Kaye might be out of fashion now, but I’ve always loved this name. It’s so cute.
5. Kit is a nickname I’ve always loved, in no small part because this is the name of one of my favoritest characters.
6. Kitty is rather out of fashion, though I’ve never understood why it’s not used so much anymore. It’s so cute, and has really nice vintage vibes. The Hungarian version is Kitti, short for Katalin.
7. Kasia (KAH-shah) is the Polish nickname for Katarzyna.
8. Kaja is the Scandinavian and Slovenian nickname for Katarina, and an Estonian nickname for Katariina.
9. Kari is Norwegian.
10. Kaia is Estonian and Norwegian.
11. Katya is the Russian nickname for Yekaterina.
12. Karin is Swedish.
13. Katrin is Estonian, German, and Swedish.
14. Kadri is Estonian.
15. Kati (with a long A, not like the English Kati) is Estonian and Hungarian.
16. Käthe is the German nickname for Katharina.
17. Kätchen is German.
18. Katja is Scandinavian, Slovenian, Dutch (for Katrijn), and German.
19. Trijntje is Dutch. I think Dutch nicknames are just adorable!
20. Rina is Dutch and Italian (for Caterina).
21. Ina is Dutch, German, Scandinavian, Limburgish, and Croatian.
22. Carine is French.
23. Kát’a (pronounced like Katya) is a Czech nickname for Kateřina and a Slovak nickname for Katarína.
24. Katka is Czech and Slovak.
25. Kačenka is Czech and Slovak.
26. Katuška is Czech and Slovak.
27. Kat’ka is Czech and Slovak. The letter T’ is different from plain T, and pronounced like the TY in Katya.
28. Káča is Czech and Slovak.
29. Kačka is Czech and Slovak.
30. Katika is Hungarian.
31. Kató is Hungarian.
32. Kata is Hungarian, Finnish, and Croatian.
33. Katica is Hungarian, Slovenian, Serbian, and Croatian.
34. Karina is Scandinavian.
35. Ríona is an Irish nickname for Catriona.
36. Cáit is Irish.
37. Kajsa is Swedish.
38. Katyenka is Russian.
39. Katyusha is Russian.
40. Katrė is the Lithuanian nickname for Kotryna.
41. Tina is Dutch and Croatian.
42. Cadi is the Welsh nickname for Catrin.
43. Kaisa is Estonian and Finnish.
44. Riina is Estonian and Finnish.
45. Triinu is Estonian.
46. Karen is Danish.
47. Iina is Finnish.
48. Rini/Riny is Dutch.
49. Cato is Dutch.
50. Tineke is Dutch.
51. Eka is the Georgian nickname for Ekaterine.
52. Cátia is the Portuguese nickname for Catarina.
53. Kaatje is Dutch.
54. Kat is English.
55. Katici is Hungarian.