T
- (Province of Ilocos Sur) Taguipuro
- (Province of Ilocos Norte) Taguipuro
- (Province of La Union) Tagudtud
- (Province of Ilocos Sur) Tagpen
- (Province of Pangasinan) Tagaporo Island
- (Province of Pangasinan) Tagac
- (Province of Ilocos Sur) Taft
- (Province of Ilocos Norte) Tadao
- (Province of Ilocos Sur) Tacbo
- (Province of Pangasinan) Tabuyoc
- (Province of Ilocos Norte) Tabtabagan
- (Province of Pangasinan) Tabo-Sili
- (Province of Pangasinan) Tobor
- (Province of Ilocos Norte) Tabog
- (Province of Ilocos Norte) Taboc
- (Province of La Union) Tabuc
- (Province of La Union) Taberna
- (Province of Ilocos Sur) Tabatab
- (Province of Pangasinan) Tebag
- (Province of Ilocos Sur) Tamurong
- (Province of Pangasinan) Tempra
- (Province of La Union) Terrero
- (Province of Pangasinan) Turac
- (Province of Ilocos Norte) Taytay
- (Province of Ilocos Norte) Tamorong
- (Province of Ilocos Norte) Toledo
- (Province of Ilocos Norte) Tagiporo
- (Province of Ilocos Norte) Tangal
- (Province of Pangasinan) Taboy Sur
- (Province of Pangasinan) Tabao