Aialik Glacier, Tidewater glacier in Kenai Fjords National Park, Alaska

Aialik Glacier is a glacier about seven kilometres long in the Kenai Peninsula Borough of Alaska, 25 km southwest of Seward. It is fed by the Harding Icefield and drains into Aialik Bay, a bay of the Gulf of Alaska west of Resurrection Bay. It is flanked by the Skee Glacier to the north and the Addison Glacier to the south.

The glacier was carved by ice movements over thousands of years, continuously reshaping the Kenai Peninsula landscape. This slow flow created the deep fjords and valleys that define the region today.

The name Aialik comes from the Sugpiaq (Alutiiq) people of the Kenai Peninsula; the bay and glacier carry it. A mural of two kayakers near the glacier, painted by Byron Birdsall, hangs in the Kenai Fjords National Park office, showing how the ice is seen today.

Aialik Glacier lies about 25 km southwest of Seward, in Kenai Fjords National Park, and is reached by boat across Aialik Bay; the glacier calves most actively in May and June. Ice walking near the terminus requires a guide and good physical condition, and visitors must follow park rules for the fragile surroundings.

The glacier generates its own weather through katabatic winds that flow down its surface, influencing local temperature and water conditions. These wind patterns are often surprisingly strong and noticeably change conditions for visitors on the water.