Harvard Glacier, Tidewater glacier in Prince William Sound, Alaska.

Harvard Glacier is a tidewater glacier in College Fjord within Prince William Sound, where the massive ice face meets the water. The glacier descends steeply into the bay and displays deep crevasses and fractures across its surface.

The glacier's name comes from Harvard University, whose 1899 Harriman Alaska Expedition explored College Fjord and named its glaciers after eastern colleges; Harvard Glacier was the largest of them. The glacier has advanced about 1.25 km into the fjord since 1909, one of the few glaciers in the sound that has grown rather than retreated.

Cruise ships crossing Prince William Sound regularly bring passengers to the glacier's 1.5-mile calving face, making it one of the sound's most visited tidewater glaciers after Columbia Glacier. The name comes from Harvard University, part of the academic naming theme of College Fjord, where neighbouring glaciers honour Yale, Radcliffe and other colleges.

The glacier is best reached by boat or cruise tours that regularly travel through Prince William Sound. Viewing from the water provides the best perspective, and visitors should wear warm clothing since conditions on the water are much colder than on land.

The glacier is in a state of steady advance, which is rare among tidewater glaciers and shows it defies the global trend of glacier retreat. This exceptional condition makes it an important location for monitoring climate patterns in Alaska.