Merganser (disambiguation)

A merganser is a fish-eating duck of the genus Mergus – also known as the "typical mergansers" – in the subfamily Anatinae.

Merganser may also refer to:

• MV Merganser, a bulk carrier of the Canadian Forest Navigation Group
• HMS Merganser, also known as RNAS Rattray, a former Royal Navy air station
• USFS Merganser, a United States Bureau of Fisheries and (as US FWS Merganser) Fish and Wildlife Service fishery patrol boat in commission from 1919 to 1942
• USS Merganser, various United States Navy ships
• Hooded merganser, a species of duck of the genus Lophodytes
• Percival Merganser, a light civil transport aircraft of the late 1940s
• Smew, a species of duck of the genus Margellus also known as the white merganser