Black Duck (also known as Black Duck Siding) is a local service district and designated place in the Canadian province of Newfoundland and Labrador that is 15 km (9 mi) east of the town of Stephenville. It is characterized by Harry's River, which runs past the community and is an Atlantic salmon fishing river. Black Duck is known as the retirement place of Captain Victor Campbell RN, the Antarctic explorer who established a community of expats there in the 1920s.