Reid Glacier, Mountain glacier in Hoonah-Angoon, Alaska.

Reid Glacier is an 11-mile (18 km) glacier in Glacier Bay National Park and Preserve, trending north to Reid Inlet two miles south of Glacier Bay and 72 miles northwest of Hoonah. It lies in the Saint Elias Mountains of the Hoonah-Angoon Census Area.

Members of the Harriman Alaska Expedition named the glacier in 1899 for Harry Fielding Reid, an American geophysicist known for his work on earthquakes and seismology. The sources do not record that Reid himself studied the glacier or the region's ice.

The name Reid Glacier comes from Harry Fielding Reid, the geophysicist honoured by the Harriman Alaska Expedition, which visited the inlet in 1899. The expedition's naming of the ice is the documented human trace here; the sources record no Tlingit traditions attached to this glacier specifically.

Reid Glacier ends at Reid Inlet, about 2 miles (3.2 km) south of Glacier Bay and 72 miles (116 km) northwest of Hoonah, so it is reached by water rather than by road. Approach by boat or kayak from the park's waters and watch for floating ice near the inlet. Weather and ice conditions change quickly; carry warm, waterproof layers.

The Harriman Alaska Expedition named the glacier for Harry Fielding Reid, an American geophysicist known for his work on earthquakes and seismology, not for studying this ice. The name appears on maps after the expedition's 1899 visit.