Michael D. Lockshin is an American professor and medical researcher. He is a researcher of autoimmune diseases, with focus on antiphospholipid syndrome and lupus. He is currently professor of medicine and obstetrics-gynecology at the Weill-Cornell University Medical College in New York City. In addition, he is director of the Barbara Volcker Center for Women and Rheumatic Disease and co-director of the Mary Kirkland Center for Lupus Research, both at the Hospital for Special Surgery Lockshin's twin brother, Richard A. Lockshin, is an American cellular biologist known for his work on apoptosis.