I
- (Province of Laguna) Inao-awan
- (Province of Quezon) Inalusan
- (Province of Quezon) Inalusan
- (Province of Quezon) Inalig
- (Province of Quezon) Inacbuhan
- (Province of Batangas) Inaclagan
- (Province of Quezon) Inaclagan
- (Province of Quezon) Inabuan
- (Province of Laguna) Imoc
- (Province of Batangas) Imamao
- (Province of Laguna) Iluyang Luguin
- (Province of Quezon) Ilusong
- (Province of Laguna) Ilog Patulo
- (Province of Quezon) Ilog Ilaya
- (Province of Quezon) Ilog
- (Province of Laguna) Ilog
- (Province of Batangas) Ilog
- (Province of Quezon) Ibabang Talim
- (Province of Laguna) Ibabang Sungi
- (Province of Quezon) Inagbuhan Ibaba
- (Province of Quezon) Ibabang Dupay
- (Province of Quezon) Ilayang Cambuga
- (Province of Quezon) Ibabang Bukal
- (Province of Quezon) Ibabang Banot
- (Province of Laguna) Ibabang Atingay
- (Province of Laguna) Ilaya
- (Province of Batangas) Ilat
- (Province of Quezon) Ikirin
- (Province of Quezon) Ikikon Island
- (Province of Batangas) Ik-ik