K
- (Romenskyi Raion) Kosarivshchyna
- (Romenskyi Raion) Khreshchatyk
- (Romenskyi Raion) Kasianove
- (Konotops’ka Mis’krada) Kniazivka
- (Konotops’ka Mis’krada) Kharivka
- (Konotops’ka Mis’krada) Kurdiumove
- (Sumskyi Raion) Kovalenky
- (Konotops’ka Mis’krada) Kosharske
- (Konotops’ka Mis’krada) Kopylove
- (Konotops’ka Mis’krada) Kubrakove
- (Konotops’ka Mis’krada) Karpenkove
- (Romenskyi Raion) Kivshyk
- (Sumskyi Raion) Kalynivka
- (Romenskyi Raion) Kulishivka
- (Romenskyi Raion) Klyn
- (Sumskyi Raion) Khomyne
- (Sumskyi Raion) Kyryiakivshchyna
- (Romenskyi Raion) Kholodnyi Yar
- (Konotops’ka Mis’krada) Kotivka
- (Romenskyi Raion) Korolivshchyna
- (Romenskyi Raion) Kalynivka
- (Romenskyi Raion) Kropyvyntsi
- (Romenskyi Raion) Korzhi
- (Romenskyi Raion) Kononenkove
- (Romenskyi Raion) Kolisnykove
- (Romenskyi Raion) Kuzmenkove
- (Romenskyi Raion) Kholodnyk
- (Sumskyi Raion) Kuianivka
- (Romenskyi Raion) Kotsupiivka
- (Romenskyi Raion) Kashpury