M
- (Province of La Union) Magsaysay
- (Province of La Union) Manga
- (Province of La Union) Marcos
- (Province of La Union) Manggunday
- (Province of La Union) Macalva Sur
- (Province of La Union) Maoasoas Sur
- (Province of Ilocos Norte) Malasin
- (Province of Ilocos Sur) Marnay
- (Province of Ilocos Sur) Margay
- (Province of Pangasinan) Moreno
- (Province of Pangasinan) Mancup
- (Province of Pangasinan) Magno
- (Province of Pangasinan) Masiren
- (Province of Pangasinan) Mangayao
- (Province of Pangasinan) Maya Island
- (Province of Pangasinan) Macaycayawan
- (Province of Pangasinan) Magsaysay
- (Province of Ilocos Norte) Maypalig
- (Province of Ilocos Norte) Mangcarmay
- (Province of Ilocos Sur) Ma-opong
- (Province of Ilocos Norte) Manayan
- (Province of Ilocos Norte) Malasin
- (Province of Ilocos Norte) Malaut
- (Province of Pangasinan) Mona
- (Province of Pangasinan) Magsaysay
- (Province of Pangasinan) Makatiw
- (Province of Ilocos Norte) Madiladig
- (Province of Ilocos Norte) Mangato
- (Province of Ilocos Norte) Magatel
- (Province of Ilocos Norte) Manlapac