| Name | Gender | Pronounced | Usage | Popularity |
|---|---|---|---|---|
| Kassidy | KAS-i-dee | English (Modern) | ||
| Kassy | KAS-ee | English (Modern) | ||
| Kat | KAT | English | ||
| Katar | - | Armenian | ||
| Katarina | kah-tah-REE-nah (German, Swedish) | German, Swedish, Norwegian, Danish, Hungarian, Croatian, Serbian, Slovene | ||
| Kate | KAYT (English) | English, Croatian | ||
| Katee | KAY-tee | English (Rare) | ||
| Katelin | KAYT-lin | English (Modern) | ||
| Katelyn | KAYT-lin | English (Modern) | ||
| Katelynn | KAYT-lin | English (Modern) | ||
| Katey | KAY-tee | English | ||
| Katharine | KATH-ə-rin (English), KATH-rin (English), kah-tah-REE-nə (German) | English, German | ||
| Katharyn | KATH-ə-rin | English | ||
| Katherina | kath-ə-REE-nə (English), kə-THREE-nə (English), kah-te-REE-nah (German) | English (Rare), German | ||
| Katherine | KATH-ə-rin, KATH-rin | English |