- Idoc-Idoc
- Igabas
- Igang
- Iguana Island
- Ili Island
- Ilian
- Iloc Island
- Imalaguan Island
- Imaruan Island
- Imbaladan Island
- Imorigue Island
- Imuruan Island
- Inabuyatan Island
- Inagauan
- Inambuyod Island
- Inamukan Island
- Inandeng
- Inapupan Island
- Inaringan Island
- Indagamy Island
- Indapdapan Island
- Inlulucut Island
- Inogbun
- Inoladoan Island
- Inonocan
- Intoton Island
- Iraan
- Isaub
- Itaytay
- Iwahig