Moritz Kaposi (1837-1902) was a Hungarian dermatologist.
In 1880, he compiled a breakthrough work in dermatology to assist lecturers with presenting skin diseases to students. It was soon translated into several other languages from the original German. He was also one of the first physicians to systematically study lupus.
However, his most lasting contribution was the description of a rare condition, Kaposi's Sarcoma. His work in the field became relevant decades later when the condition became common in gay men in New York City and led to the discovery of AIDS and HIV.