Auyuittuq National Park (Inuktitut: ᐊᐅᔪᐃᑦᑐᖅ, IPA: [aujuitːuq], "the land that never melts") is a national park located on Baffin Island's Cumberland Peninsula, in the Qikiqtaaluk Region of Nunavut, the largest political subdivision of Canada. The park was initially known as Baffin Island National Park when it was established in 1972, but the name was changed in 1976 to its current name to better reflect the region and its history. It features many terrains of Arctic wilderness, such as fjords, glaciers, and ice fields. Although Auyuittuq was established in 1972 as a national park reserve, it was upgraded to a full national park in 2000.

Auyuittuq National Park is located on the Cumberland Peninsula of Baffin Island in Nunavut. The park is located within the Arctic Circle. The park covers 21,470 square kilometres (8,290 sq mi) and is located partially within the Penny Highlands and contains the 6,000 km (2,300 sq mi) Penny Ice Cap. The Penny Ice Cap, made of ice sitting on Precambrian granite, creates a series of glaciers, among them the Coronation Glacier. The land reflects the geological history of the area, with deep valleys between the peaks, which include Mount Asgard with an 800 m (2,600 ft) face, and Mount Thor with a 1,250 m (4,100 ft) face. Along the coast are deep, narrow fjords. In Akshayuk Pass, the winds can reach 175 km/h (109 mph).

The nearest towns are Qikiqtarjuaq and Pangnirtung. Visitors wishing to enter the park are required by Parks Canada to register at the park office in Pangnirtung or Qikiqtarjuaq, and attend an orientation session. Park user fees apply.

First established in 1972 as Baffin Island National Park, in 1975, Parks Canada chose to rename the park in order to better reflect the landscape and the Inuit history within the region. After some debate, the name was changed to Auyuittuq National Park, which is an Inuktitut word meaning "the place that does not melt".

Little vegetation can be found in Auyuittuq Park, although the plants found there range from flowers such as mountain avens, campion, Papaver, and saxifrage to shrubs like dwarf birch, Arctic willow, and heather. Many of the plants in Auyuittuq Park grow in clumps to create their own warmer "microclimate" to survive the harsh Arctic conditions.

Because of the exceptionally low vegetation supply on land, wildlife is very scarce. However, the park is bordered on three sides by sea and marine life is found within the park's boundaries. Species that live in Auyuittuq Park include lemmings (both the North American brown lemming and the northern collared lemming), red foxes, snowy owls, peregrine falcons, ermines, rough-legged hawks, gyrfalcons, beluga whales, snow geese, polar bears, wolves, narwhals, Canada geese, Arctic foxes, Arctic hares, and some barren-ground caribou.

The most common backpacking route in the park is known as Akshayuk Pass, and follows the Weasel and Owl rivers via Summit Lake. In 2008, heavy rain and warm weather caused Summit Lake to burst through its banks, flooding the Weasel River and washing away the Windy Lake bridge. As a result, the hiking routes in the pass are limited to either side of the Weasel River.

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  Mount Asgard, Baffin Island, 2001
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  Maktak Fiord Delta
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  Horseshoe-shaped lateral moraines at the margin of the Penny Ice Cap
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  Along the Weasel River, hiking to Mount Thor
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  Mount Odin
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  Rock formations and glaciers. Turnweather Peak in the middle.
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  Weasel River Valley with Schwartzenbach Falls in the distance
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  Baffin Mountains from the air, Cumberland Peninsula
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  Summit Lake at Akshayuk Pass
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  Auyuittuq National Park Office in Pangnirtung

• National Parks of Canada
• List of National Parks of Canada
• List of Nunavut parks
• Arctic Cordillera

• Parks Canada official site
• Mount Thor Peak climbing info
• Information and pictures - from The Tulugak Hotel Archived 2022-03-07 at the Wayback Machine
• Auyuittuq National Park Information
• Newspaper article about Auyuittuq National Park by Dallas Morning News reporter Dave Levinthal