Hans Möller was born on November 10, 1918, in Copenhagen, Denmark.

He was a librarian and lecturer. He graduated from the University of Copenhagen (Ph.D. in Danish Language and Literature, 1945) and became Research Librarian at the Copenhagen Royal Library. During World War II, he participated in the dramatic rescue of Danish Jews by smuggling them to Sweden. In 1955, he came to Canada to pursue his passion for film, working as an Executive Director at the National Film Board (1956-1969) and as Vice-president of the Visual Education Centre in Toronto (1969-1974). In 1974, he became Chief Librarian at Ottawa University Library. From 1977 onwards, he worked as a Librarian, Professor of Scandinavian Literature, the head of McGill's School of Information Studies (1981-1984) and the acting Director of McGill University Libraries (1984-1986) in Montreal. He served as President of the Canadian Association of Research Libraries (1976-1978). He also enjoyed teaching Danish and editing scholarly books in the Fontanus series, which he founded. For many years, Dr. Möller served as President of the Canadian-Scandinavian Foundation, dedicating himself to raising funds to help young people in Canada travel to the Nordic countries for study or research.

He died on September 7, 2015, in Montreal, Quebec, and he bequeathed his body to science at McGill University.