| Abbreviation | Definition |
|---|---|
| KJHS | Killicomaine Junior High School |
| KJHS | Kittanning Junior High School |
| KJSB | King John School B |
| KKIP | Kangaroo Kids International Preschool |
| KKP | Kiddies Korner Preschool |
| KKP | Kiddies' Korner Preschool |
| KKS | Kirkbie Kendal School |
| KKSA | Karen Kain School of the Arts |
| KLAS | Kids Learning after School |
| KLASS | Keep Los Altos Schools Strong |
| KLI | Klingon Language Institute |
| KLMS | Kelly Lane Middle School |
| KLMS | Kemps Landing Magnet School |
| KLOS | Kids Love Our Schools |
| KLS | Key Largo School |
| KLS | Khan Lab School |
| KLSS | Ko Lui Secondary School |
| KMBS | Kyiv Mohyla Business School |
| KMHS | Kasson-Mantorville High School |
| KMHS | Kennesaw Mountain High School |