Peter Martin Anker (22 August 1927 – 22 December 2012) was a Norwegian museum director, art historian and critic.
He was born in Bergen as a son of chief physician Herman Anker (1901–1970) and Charlotte Amalie Meyer (1897–1985).
From October 1973 he was married to Inger Kiær, a daughter of Herman L. Løvenskiold, but that marriage was dissolved too.
He worked for Landslaget Kunst i Skolen from 1954 to 1957, as a curator for the Norwegian Museum of Cultural History from 1958 to 1965 and director of Vestlandske Kunstindustrimuseum from 1965 to 1994.
He published his first criticism before finishing secondary school, and via the Academy of Craft and Art Industry newspaper Acantus he wrote in national outlets such as Kunsten i dag and Dagbladet.