N
- (Province of Ilocos Norte) Nalasin
- (Province of Ilocos Sur) Nalasin
- (Province of Ilocos Sur) Nalasin
- (Province of Ilocos Sur) Nalasin Sur
- (Province of La Union) Nalasin
- (Province of Pangasinan) Naitayan
- (Province of Ilocos Sur) Namita
- (Province of La Union) Nagyubuyuban
- (Province of La Union) Nagyubuyuban
- (Province of Ilocos Sur) Nagyebngar
- (Province of Ilocos Sur) Nagong Boran
- (Province of La Union) Naguituban
- (Province of La Union) Naguirangan
- (Province of Ilocos Sur) Naguimba
- (Province of Ilocos Sur) Naguilian
- (Province of Pangasinan) Naguilayan
- (Province of Pangasinan) Naguilayan West
- (Province of Ilocos Norte) Nagudangan
- (Province of Ilocos Norte) Nagubugan
- (Province of Ilocos Sur) Nagtopacan
- (Province of Ilocos Norte) Nagtrigoan
- (Province of Ilocos Norte) Nagtoconan
- (Province of Ilocos Sur) Nagtengga
- (Province of Ilocos Sur) Nagtupacan
- (Province of Ilocos Norte) Nagsurot
- (Province of Ilocos Sur) Nagsuputan
- (Province of Ilocos Sur) Nagsingcaoan
- (Province of La Union) Nagsinaan
- (Province of La Union) Nagsimbaanan
- (Province of La Union) Nagsidurisan