Margaret W. Rossiter

Margaret W. Rossiter
Born
Margaret Walsh Rossiter

(1944-07-08)July 8, 1944
DiedAugust 3, 2025(2025-08-03) (aged 81)
Known forMatilda effect
Awards
Academic background
Education
ThesisThe Emergence of Agricultural Science, Justus Liebig and the Americans, 1840–1880 (1975)
Doctoral advisorFrederic L. Holmes
Academic work
DisciplineHistorian of science
Sub-discipline
Institutions

Margaret Walsh Rossiter (July 8, 1944 – August 3, 2025) was an American historian of science who was based at Cornell University. Rossiter coined the term Matilda effect in 1993 to describe bias against acknowledging the achievements of women scientists and inventors, whose work is consequently attributed to their male colleagues.