The Alaska Maritime National Wildlife Refuge (often shortened to Alaska Maritime or AMNWR) is a United States National Wildlife Refuge comprising 2,400 islands, headlands, rocks, islets, spires and reefs in Alaska, with a total area of 4.9 million acres (20,000 km2), of which 2.64 million acres (10,700 km2) is wilderness.

The refuge has diverse landforms and terrains, including tundra, rainforest, cliffs, volcanoes, beaches, lakes, and streams.

About 75 percent of Alaskan native marine birds, 15 to 30 million among 55 species, use the refuge.

Each species has a specialized nesting site (rock ledge, crevice, boulder rubble, pinnacle, or burrow).

Other animals present in this refuge include caribou, sea lions, bears, coyotes, seals, Canada lynx, beavers, foxes, muskrats, wolf packs, moose, walrus, river otters, marten, whales, Dall sheep and sea otters.