K
- (Bohodukhivskyi Raion) Kovalchukivka
- (Chuhuiv City Council) Kotivka
- (Kupianska Miskrada) Kotlyarovka
- (Iziumska Miskrada) Kotlyarovka
- (Bohodukhivskyi Raion) Kotelevka
- (Bohodukhivskyi Raion) Kostiv
- (Chuhuiv City Council) Koropove
- (Chuhuiv City Council) Korobochkyne
- (Krasnohradskyi Raion) Kopanky
- (Iziumska Miskrada) Kopanka
- (Lozova City Council) Kopani
- (Bohodukhivskyi Raion) Kostiantynivka
- (Chuhuiv City Council) Kostiantivka
- (Krasnohradskyi Raion) Kostiantynivka
- (Lozova City Council) Kinne
- (Kupianska Miskrada) Kindrashivka
- (Chuhuiv City Council) Kulakovka
- (Kupianska Miskrada) Komissarovka
- (Iziumska Miskrada) Komarivka
- (Bohodukhivskyi Raion) Kolontaiv
- (Kupianska Miskrada) Kolodnyy
- (Kupianska Miskrada) Kolodiazne
- (Kupianska Miskrada) Kolisnykivka
- (Kupianska Miskrada) Kolisnykivka
- (Lozova City Council) Kokhovskiy
- (Krasnohradskyi Raion) Kokhanivka
- (Bohodukhivskyi Raion) Kobzarivka
- (Kharkiv City Council) Kniazhne
- (Lozova City Council) Knyazevo
- (Chuhuiv City Council) Kluhyno-Bashkyrivka