The Margaret W. Rossiter History of Women in Science Prize is awarded by the History of Science Society for an outstanding book (in odd-numbered years) or article (in even-numbered years) on the history of women in science, published at most four years before the year of the award. It was previously called the Women's Prize, but in 2004 the History of Science Society Council voted unanimously at its annual meeting to rename it the Margaret W. Rossiter History of Women in Science Prize.