Tsai-Fan Yu (Chinese: ???; pinyin: Yù Caifán; Wade–Giles: Yü Ts'ai-fan, 1911 – March 2, 2007) was a Chinese-American physician, researcher, and the first woman to be appointed as a full professor at Mount Sinai School of Medicine.
She helped to develop an explanation for the cause of gout and experimented with early drugs to treat the disease which are still in use today.