K
- (Aso-gun) Kamiekoo
- (Kamimashiki-gun) Kasazuki
- (Amakusa Shi) Komori
- (Amakusa Shi) Komebuchi
- (Amakusa Shi) Kaminokura
- (Amakusa Shi) Kaseura
- (Amakusa Shi) Kawauramachi-rogi
- (Amakusa Shi) Kawauramachi-hisadome
- (Amakusa Shi) Kutamamachi
- (Amakusa Shi) Kuroishi
- (Amakusa Shi) Kawauramachi-imatomi
- (Amakusa Shi) Kuchikibayashi
- (Amakusa Shi) Kameura
- (Amakusa Shi) Kofurue
- (Amakusa Shi) Kuura
- (Amakusa Shi) Kawauramachi-shirakikawachi
- (Amakusa Shi) Kawauramachi-kawaura
- (Amakusa Shi) Kama
- (Amakusa Shi) Kogawachi
- (Amakusa Shi) Kurata
- (Amakusa Shi) Kanayama
- (Amakusa Shi) Kurosaki
- (Amakusa Shi) Kamihira
- (Amakusa Shi) Kawauramachi-miyanokawachi
- (Amakusa Shi) Kawauramachi-imada
- (Amakusa Shi) Kawauramachi-tachihara
- (Amakusa Shi) Kawauramachi-shingō
- (Amakusa Shi) Kozuka
- (Amakusa Shi) Kuratani
- (Amakusa Shi) Kuwakizako