The DeHavilland Canada DHC 6 Twin Otter was first flown in 1965 with deliveries beginning in 1966. Three production versions were offered during the 22 years of production. The initial production version was designated the -100, followed by the -200 and -300. The -100 and -200 are better for inter-city commuter service, while the -300 was developed to offer increased payload capacity, higher cruising speeds, better hot weather performance and a short takeoff distance. Production ended with more than 800 deliveries.

The Twin Otter is made by the DeHavilland company of Canada.