Air Tindi is an airline based in Yellowknife, Northwest Territories, Canada. It operates scheduled and on demand charter services. Its main base is Yellowknife Airport and the airline was previously owned by the Arychuk family. The name Tindi means "the big lake" or "Great Slave Lake" in the local native Tłı̨chǫ Yatiì language.
Air Tindi was established by two families, Alex Arychuk and his wife Sheila, and his brother Peter Arychuk and his wife Teri. It began operations on 1 November 1988, with four float/ski aircraft. In 1990, it purchased its first De Havilland Canada DHC-6 Twin Otter with the help of the Rae-Edzo Development Corporation, allowing the airline to expand and provide more services to the growing mining exploration industry. In 1991, Air Tindi merged with Latham Island Airways and acquired a further four aircraft in the process. By mid-1992, Air Tindi was operating four Twin Otters on floats. In 1993, its first large aircraft was purchased, a DHC 4 Caribou for re-supply work with the mining industry. A DHC Dash 7 was acquired in 1996.