Wendela Beata Losman (née Hammarskjöld, born 27 November 1938, Malmö, Sweden) is a Swedish historian and archivist.
Beata Hammarskjöld, later Losman through marriage, was born 27 November 1938 in Malmö.
She is the daughter of the physician Sven Hammarskjöld and the librarian Birgit Lundberg.
She was acting Regional Archives during Gösta Lexts's illness 1975–1977,[1] and became its head in 1987.
In 1995, she competed with Anita Göransson for the professorship in women's history at the University of Gothenburg.