Oscar Rotter (born 21 July, 1865), also with the German spelling Oskar Rotter, was a German-born New York physician and proponent of free love and contraception. Rotter's books included The Sexes and Love in Freedom and Jealousy, the Foe of Freedom, and he published articles on free love, rebutting the views of Lucy Parsons. Rotter was also a driving force in the medico-economic movement, an early effort to address the economic pressures on the medical profession and pharmaceutical industry.
Rotter was born in Landeck, Silesia, Germany. He was educated at the Royal St. Matthias Gymnasium in Breslau. After immigrating to the United States, he graduated from New York University Medical College in 1891 and earned a doctor of medicine degree.
He was secretary of the Federation of the Medical Economic Leagues; chairman of the committee on Economic Research in Yorkville Medical Society; associate editor of The Medical Economist; and local medical examiner for the Tribe of Ben-Hur. His memberships in professional organizations included the Yorkville Medical Society, Yorkville Physicians Economic League, Association for Culture and the Sunrise Club. Rotter was also named honorary member of the New York County Pharmaceutical Society.
He is probably the Oscar Rotter who was executive surgeon for the East Side Clinic for Children, 325 E. 84th Street in New York.
Unless otherwise noted, information on Rotter's life from One Thousand American Men of Mark of To-day (Chicago, 1916), pp. 371âÂÂ372 online and General Alumni Catalogue of New York University 1833âÂÂ1907, p. 451 online.