B
- (Province of Ilocos Sur) Bimmanga
- (Province of Ilocos Norte) Bilot
- (Province of La Union) Bilis Northwest
- (Province of Ilocos Sur) Bilig
- (Province of Pangasinan) Biley
- (Province of La Union) Bigbiga
- (Province of Ilocos Sur) Bigbiga
- (Province of Pangasinan) Biec West
- (Province of Ilocos Sur) Bidbiday
- (Province of La Union) Biday
- (Province of Ilocos Sur) Biao
- (Province of Pangasinan) Betogoc
- (Province of Ilocos Sur) Beto
- (Province of La Union) Betia
- (Province of La Union) Bet-ang
- (Province of Ilocos Sur) Bessang
- (Province of Ilocos Sur) Bessang
- (Province of Ilocos Sur) Besang
- (Province of Ilocos Sur) Besalan
- (Province of Pangasinan) Bereit
- (Province of Ilocos Sur) Bangngang
- (Province of Pangasinan) Buenglat
- (Province of Ilocos Norte) Bengcag
- (Province of Ilocos Norte) Bengcag
- (Province of Pangasinan) Beltran
- (Province of Ilocos Sur) Belen
- (Province of Ilocos Sur) Beddeng Laud
- (Province of Ilocos Sur) Becques
- (Province of La Union) Bayyating
- (Province of Ilocos Sur) Bayugao