World Heritage letter "K"
- Kathmandu Valley(Nepal)
- Kluane/Wrangell-St Elias/Glacier Bay/Tatshenshini-Alsek(Canada and United States of America)
- Kahuzi-Biega National Park(Congo)
- Kakadu National Park(Australia)
- Kaziranga National Park(India)
- Keoladeo National Park(India)
- Khajuraho Group of Monuments(India)
- Khami Ruins National Monument(Zimbabwe)
- Kilimanjaro National Park(United Republic of Tanzania)
- Ksar of Ait-Ben-Haddou(Morocco)
- Kairouan(Tunisia)
- Kiev: Saint-Sophia Cathedral and Related Monastic Buildings, Kiev-Pechersk Lavra(Ukraine)
- Kizhi Pogost(Russian Federation)
- Kremlin and Red Square, Moscow(Russian Federation)
- Komodo National Park(Indonesia)
- Kasbah of Algiers(Algeria)
- Kutná Hora: Historical Town Centre with the Church of St Barbara and the Cathedral of Our Lady at Sedlec(Czech Republic)
- Kalwaria Zebrzydowska: the Mannerist Architectural and Park Landscape Complex and Pilgrimage Park(Poland)
- Kinabalu Park(Malaysia)
- Kronborg Castle(Denmark)
- Kvarken Archipelago/ High Coast(Finland and Sweden)
- Kernavė Archaeological Site (Cultural Reserve of Kernavė)(Lithuania)
- Koutammakou, the Land of the Batammariba (Togo)
- Kunya-Urgench (Turkmenistan)
- Kondoa Rock‐Art Sites(United Republic of Tanzania)
- Kaiping Diaolou and Villages(China )
- Kuk Early Agricultural Site(Papua New Guinea)