| Abbreviation | Definition |
|---|---|
| KC | Katie Catherine |
| KC | Kelly's Cat |
| KC | Kenneth Charles |
| KC | Kevin Christopher |
| KC | Killer Cat |
| KC | Kimberly's Cat |
| KC | Kind Critter |
| KC | Kitti Cat |
| KC | Kitty Cat |
| KC | Krazy Canine |
| KC | Kristin Courtney |
| KD | Kathryn Dawn |
| KD | Kevin Durant |
| KEEM | Keemstar |
| KELTON | A Smart and Awesome Guy |
| KEMODA | Kadence, Macie and Dylan |
| Ken | Kenneth |
| KENOVA | Kentucky, Ohio, Virginia |
| KFC | Kentucky Fried Chicken |
| KG | Katie Girl |