I
- (Province of Camarines Norte) Iraya Norte
- (Province of Camarines Sur) Iquin
- (Province of Masbate) Ipil
- (Province of Masbate) Intukudan
- (Province of Masbate) Intosan
- (Province of Masbate) Interior
- (Province of Camarines Sur) Inolgan
- (Province of Masbate) Inintusan
- (Province of Camarines Sur) Inguinan
- (Province of Camarines Norte) Ingalan Island
- (Province of Sorsogon) Incarizan
- (Province of Albay) Inascan
- (Province of Sorsogon) Inararan
- (Province of Albay) Inarado
- (Province of Sorsogon) Inang
- (Province of Camarines Norte) Inamiag
- (Province of Camarines Sur) Inalahan
- (Province of Camarines Sur) Inapatan
- (Province of Albay) Iraya
- (Province of Camarines Norte) Imelda
- (Province of Camarines Sur) Iriga City