Nadezhda Nikolaevna Ladygina-Kohts (??????? ?????????? ????????-????; (1889-05-18)May 18, 1889 – (1963-09-03)September 3, 1963) was a Russian zoopsychologist and comparative psychologist best known for her work comparing human and chimpanzee behavior, emotion, and cognition.
She is the author of several books on ape and monkey behavior and served as the co-director of the first natural history museum in Russia.