| Acronym | Definition |
|---|
| EKF | English Karate Federation (UK) |
| EKF | Extended Kalman Filter |
| EKF | European Kendo Federation |
| EKF | Extended Key Flag |
| EKF | Eksport Kredit Fonden (Danish: Export Credit Fund) |
| EKF | European Karate Federation |
| EKF | European Kyudo Federation (est. 1980; Japanese archery) |
| EKF | Entwicklung Konstruktion Fertigung (German: Development Design Manufacturing; Austria) |
| EKF | Entsorgungsdienste Kreis Freiberg (German: Disposal Services Freiberg; Freiberg, Germany) |
| EKF | Eastern Ki Federation (martial arts) |
| EKF | Epikeratophakia (eye condition) |