I
- (Aleutians West Census Area) Inner Rocks
- (Aleutians West Census Area) Ingenstrem Rocks
- (Sitka City and Borough) Ilput Island
- (Sitka City and Borough) Impassible Island
- (Thomas County) Independence Island
- (Prince of Wales-Hyder Census Area) Indiada Island
- (Juneau City and Borough) Indian Island
- (Ketchikan Gateway Borough) Indian Rock
- (Miller County) Indian Rock
- (Madison County) Indian Rock
- (Perry County) Inian Island
- (Perry County) Inian Islands
- (Prince of Wales-Hyder Census Area) Isleta
- (Aleutians West Census Area) Islands of Four Mountains
- (Kenai Peninsula Borough) Iniskin Island
- (Greene County) Ingot Island
- (Anchorage Municipality) Indian
- (Aleutians West Census Area) Ina Island
- (Lowndes County) Illuitkuk Islands (historical)
- (Aleutians West Census Area) Ilak Island
- (Lowndes County) Ikpilgok
- (Aleutians West Census Area) Ikiginak Island
- (Dillingham Census Area) Igushik
- (Aleutians West Census Area) Igitkin Island
- (Kusilvak Census Area) Igiayarok
- (Lowndes County) Igalik Island
- (Lowndes County) Igalik Island
- (Prince of Wales-Hyder Census Area) Isla Buen Ayre
- (Lake and Peninsula Borough) Ivanof Bay
- (Lake and Peninsula Borough) Igiugig