N
- (Kusilvak Census Area) Nevensky Island
- (Kusilvak Census Area) New Fort Hamilton
- (Kusilvak Census Area) New Knockhock
- (Sumter County) New Year Islands
- (Sumter County) New Year Island
- (Lowndes County) Niakuk Islands
- (Kenai Peninsula Borough) Nikishka
- (Kusilvak Census Area) Nililak
- (Kodiak Island Borough) Ninagiak Island
- (Yukon-Koyukuk Census Area) Ninemile Island
- (Yukon-Koyukuk Census Area) Ninemile Island
- (Kenai Peninsula Borough) No Name Island
- (Kodiak Island Borough) Noisy Islands
- (Kusilvak Census Area) Nokogamiut Island
- (Bethel Census Area) Nogamut (historical)
- (Bethel Census Area) Nooravloaksmiut Island
- (Kenai Peninsula Borough) Nordyke Island
- (Kenai Peninsula Borough) Nordyke Islands
- (Kodiak Island Borough) Nord Island
- (Copper River Census Area) North Fork Island
- (Sumter County) North Island
- (Aleutians West Census Area) North Rocks
- (Aleutians West Census Area) North Rock
- (Lowndes County) North Star Island
- (Yukon-Koyukuk Census Area) Novakaket Island
- (Lowndes County) Nuekshat Island
- (Kenai Peninsula Borough) Nuka Island
- (Kenai Peninsula Borough) Nuka Rock
- (Kodiak Island Borough) Nukshak Island
- (Yukon-Koyukuk Census Area) Nulato Island