Otto Pollak was a writer and academic. He was a professor of Sociology at the University of Pennsylvania, and his most controversial and famous book was The Criminality of Women (1950), in which he suggested that women commit just as much crime as men, but that their crime is more easily hidden. Pollak further argued that the criminal justice system was biased by preconceptions about women and did not convict or sentence women as harshly as men. His empirical work has provided a starting point for criminology on women. Additionally, however, anti-feminist and "men's movement" groups have selectively appropriated his research.

See also: masculism