A
- (Province of Ilocos Sur) Alangan
- (Province of Ilocos Sur) Alaludig
- (Province of Ilocos Norte) Al-Alutin
- (Province of La Union) Al-alinao Sur
- (Province of La Union) Al-alinao Norte
- (Province of Pangasinan) Alalay
- (Province of Pangasinan) Alo Island
- (Province of Pangasinan) Alacan
- (Province of Pangasinan) Alacan
- (Province of Ilocos Norte) Alabaan
- (Province of Ilocos Norte) Agunit
- (Province of Ilocos Norte) Aguitap
- (Province of Ilocos Norte) Aguire
- (Province of La Union) Aguioas
- (Province of Pangasinan) Aguing
- (Province of La Union) Agtipal
- (Province of Pangasinan) Agoo
- (Province of Pangasinan) Agno
- (Province of Ilocos Sur) Aggay
- (Province of Ilocos Norte) Aggasi
- (Province of Ilocos Norte) Aggao
- (Province of La Union) Agdeppa
- (Province of Pangasinan) Agdao
- (Province of Pangasinan) Agdao
- (Province of Pangasinan) Agdao
- (Province of Pangasinan) Agat
- (Province of Ilocos Norte) Agapana
- (Province of Ilocos Sur) Agaguman
- (Province of Ilocos Sur) Agagrao
- (Province of Ilocos Norte) Agaga