| Name | Gender | Pronounced | Usage | Popularity |
|---|---|---|---|---|
| Katee | KAY-tee | English (Rare) | ||
| Katherina | kath-ə-REE-nə (English), kə-THREE-nə (English), kah-te-REE-nah (German) | English (Rare), German | ||
| Katheryne | KATH-ə-rin, KATH-rin | English (Rare) | ||
| Katriona | kə-TREE-nə, kat-ree-O-nə | English (Rare) | ||
| Kayleah | KAY-lee | English (Rare) | ||
| Kayleen | KAY-leen | English (Rare) | ||
| Kayly | KAY-lee | English (Rare) | ||
| Keefe | KEEF | Irish, English (Rare) | ||
| Keeleigh | KEE-lee | English (Rare) | ||
| Keighley | - | English (Rare) | ||
| Keir | - | Scottish, English (Rare) | ||
| Keiran | - | English (Rare) | ||
| Kelcey | KEL-see | English (Rare) | ||
| Kelda | - | English (Rare) | ||
| Kelia | - | English (Rare) |