K
- (Province of Isabela) Kalinga
- (Province of Cagayan) Kanawan
- (Province of Cagayan) Kataruinan
- (Province of Cagayan) Kanangkaan
- (Province of Nueva Vizcaya) Kinalabasa
- (Province of Nueva Vizcaya) Kinakao
- (Province of Nueva Vizcaya) Kong Kong
- (Province of Quirino) Keat
- (Province of Quirino) Kituan
- (Province of Quirino) Kompang
- (Province of Nueva Vizcaya) Kakidugen
- (Province of Isabela) Kanaipang
- (Province of Quirino) Kimmaligong
- (Province of Cagayan) Kanapawan
- (Province of Isabela) Kalabaza
- (Province of Cagayan) Kilkiling
- (Province of Isabela) Kalusutan
- (Province of Nueva Vizcaya) Kaniat
- (Province of Cagayan) Kaniwalaan
- (Province of Batanes) Kanmbakan
- (Province of Cagayan) Kapanikian
- (Province of Nueva Vizcaya) Kayapa Proper East
- (Province of Quirino) Kilingan
- (Province of Isabela) Kimampana
- (Province of Nueva Vizcaya) Kirang
- (Province of Cagayan) Kittag
- (Province of Nueva Vizcaya) Klacat
- (Province of Nueva Vizcaya) Kongkong
- (Province of Nueva Vizcaya) Kongokong