| KOOL | K-Based Object Oriented Language
| Others |
| KOOL | Kamloops Open Online Learning
| Others |
| KOOL | Keep Only One Love
| Others |
| KOOL | Kentucky Offender
| Others |
| KOOL | Kentucky Offender Online Lookup
| Others |
| KOOL | Kentucky Online Offender Lookup
| Others |
| KOOL | Key Online Opinion Leader
| Others |
| KOOL | Kids Officially On Line
| Others |
| KOOL | Kids Organization Of Lifestyle
| Others |
| KOOL | Kids Organizing Opportunities for Life
| Others |
| KOOL | Kids Out Of Lessons
| Others |
| KOOL | Kids Out On the Lake
| Others |
| KOOL | Killester Organised Online Learning
| Others |
| KOOL | King Of Old Ladys
| Others |
| KOOL | Knowledge Out Of Learning
| Others |
| KOOL | Ky Offender Online Lookup
| Others |