I
- (Province of Laguna) Ibaba del Norte
- (Province of Laguna) Ibaba del Sur
- (Province of Laguna) Ilaya del Sur
- (Province of Laguna) Ilaya del Norte
- (Province of Laguna) Isla
- (Province of Laguna) Inuoc
- (Province of Laguna) Inayapan
- (Province of Laguna) Ibabang
- (Province of Laguna) Ibabang
- (Province of Cavite) Ipilan
- (Province of Cavite) Inchican
- (Province of Quezon) Ilayang Kabulihan
- (Province of Quezon) Ilayang Saliyao
- (Province of Quezon) Ilang-Ilog
- (Province of Quezon) Ilang-Ilog
- (Province of Quezon) Icol
- (Province of Quezon) Inusukan
- (Province of Quezon) Ilayang Palsabangon
- (Province of Quezon) Ibabang Bagumbungan
- (Province of Quezon) Idjang
- (Province of Quezon) Inotan
- (Province of Cavite) Inocencio
- (Province of Laguna) Isla de Calamba
- (Province of Batangas) Inicbulan
- (Province of Quezon) Isabang
- (Province of Batangas) Ilihan
- (Province of Quezon) Ibabang Tayuman
- (Province of Quezon) Infanta