Tatannuaq

Tatannuaq (Inuktitut: ᑕᑕᓐᓄᐊᖅ, Inuktitut pronunciation: [tatanːuaq], c. 1790s – early 1834), also known as Tattannoeuck or Augustus, was an Inuk interpreter for two of John Franklin's Arctic expeditions in what is now Canada. Originally from a group of Inuit living 320 km (200 mi) north of Churchill, then part of Rupert's Land, he was employed as an interpreter at the Hudson's Bay Company (HBC) trading post in Churchill, becoming proficient in English and Cree. He explained various geographical and Inuit cultural characteristics to Franklin.

Tatannuaq was hired as one of two Inuit interpreters to accompany Franklin's 1819–1822 Coppermine expedition; during the expedition, Franklin would sometimes send him ahead of the party to scout the terrain, and he helped to communicate with groups they encountered. The expedition was plagued by starvation and by the deaths of the majority of the expedition party on the return journey. He accompanied Franklin on the 1825–1827 Mackenzie River expedition, where he served a diplomatic role and dissuaded Inuit groups from attacking the expedition. After several years of interpreter service at the HBC post at Fort Chimo, he departed to the interior to assist in locating John Ross's expedition, but died due to bad weather a short distance from Fort Resolution in early 1834. The butterfly species Callophrys augustinus and a Northwest Territories lake were named for him.