Jaf
- Fédération Internationale de l'Automobile
- JAF (cartoonist)
- JAF (musician)
- Jaf, Iran
- Jaff (Kurdish tribe)
- Jaish al-Fatah
- Jalalabad Airfield
- James A. Fitzpatrick Nuclear Generating Station
- James Alex Fields
- Japan Air Self-Defense Force
- Japan Automobile Federation
- Japanese Anarchist Federation
- JavaBeans Activation Framework
- Jetairfly
- Jordanian Armed Forces
- Kankesanturai Airport