Douglas "Doug" Allan (born 1951) is a Scottish wildlife cameraman and photographer best known for his work in polar regions and underwater.
Allan is one of twin brothers born in Dunfermline in Scotland, the son of a photographer and photojournalist who ran his own photography shop in the town. As a child Allan became a keen snorkeller and underwater diver, which inspired him to study marine biology at the University of Stirling. His first job was as a pearl diver with Bill Abernathy, the last pearl hunter in Scotland.
He frequently gives illustrated lectures and talks, including at the 2016 Cambridge University Expedition Society annual dinner.