de Havilland Canada DHC-6 Twin Otter 是一款加拿大短距起降（STOL）多用途飞机，由 de Havilland Canada 于1960年代中期研发，至今仍在生产。该机型由 De Havilland Canada 于1965年至1988年间制造。2006年，Viking Air 收购了该机型的型号合格证，并于2008年重启生产，随后重新采用 De Havilland Canada 名称。2023年，DHC 开始生产 300-G 型，这是 Series 400 的升级版本，配备 Garmin 航电系统。
该飞机的固定前三点式起落架、短距起降能力、双涡轮螺旋桨发动机和高爬升率使其成为成功的通勤客机，通常可搭载18-20名乘客，同时也用作货运和医疗后送飞机。Twin Otter 在商业跳伞运营中也广受欢迎，并被美国陆军跳伞队和美国空军第98飞行训练中队使用。
DHC-6-200 cockpit
The floatplane version of the DHC-6 enables water landings
DHC-6-300 passenger cabin
First flight of the Series 400 technical demonstrator by Viking Air at Victoria Airport , 1 October 2008
Aerovías DAP DHC-6 Series 300 at Puerto Williams , Chile
A Twin Otter making a normal landing approach in Queensland , Australia
A Trans Maldivian Airways Twin Otter at Velana International Airport, Maldives
De Havilland Canada DHC-6 Twin Otter on Beechey Island at the graves of seamen who were part of Franklin's lost expedition (Nunavut, Canada) circa 1997. Note the tundra tires .
Twin Otter daily scheduled service between Glasgow (Scotland) and Barra Airport 's sandy beach runway
An Air Greenland Twin Otter at Kangerlussuaq Airport
Short-nosed DHC-6-100 Twin Otter at DeLand Municipal Airport
Air Seychelles de Havilland Canada DHC-6-300 Twin Otter on Bird Island, Seychelles
A Seaborne Airlines DHC-6-300 fitted with floats makes a water landing at Saint Thomas, U.S. Virgin Islands
DHC-6 Cockpit view landing at St Barths
de Havilland Canada DHC-6 Twin Otter 3-view drawing
