Beatrice Fry Hyslop (10 April 1899 – 23 July 1973) was an American historian of France.
Her mother, Mary Fry (Hall) Hyslop, daughter of a wealthy Philadelphia merchant, was a pianist.
Beatrice attended the Barnard School for Girls (founded in 1889) from 1912 to 1915, before graduating from Mount Holyoke College in 1919 as a Phi Beta Kappa with a double major in history and art.
Hyslop started work on her Ph.D. at Columbia in 1928 and she was commissioned by the French Government to catalog a list of grievances drawn up during the election of the Estates General of 1789 (cahiers de doléances), spending three years in France on the project.
Hyslop founded the Society for French Historical Studies in 1955 and later served as its president.