Kaf or KAF may refer to:
- KAF-10500, a CCD imaging sensor designed
- KAF Radio, an independently owned radio station, located at Kandahar Airfield, Afghanistan
- Kaph, the eleventh letter of many Semitic abjads
- Cafre, a person born in Réunion of Malagasy and/or African origins
- Communist Workers League (Sweden) (Swedish: Kommunistiska Arbetarförbundet), a Swedish Trotskyist political party now called the Socialist Party
- Kandahar International Airport, located south-east of Kandahar City in Afghanistan
- Kenya Air Force, the national Air Force of Kenya
- Khmer National Air Force, the air force branch of the Khmer National Armed Forces, the official military of the Khmer Republic during the Cambodian Civil War between 1970 and 1975
- Korean Alpine Federation
- Kuwait Air Force, the national Air Force of Kuwait
- Kyrgyz Air, a privately owned airline based in Kyrgyzstan