Dr. Jean Isabelle Dow (25 June 1870 – 16 January 1927) was a Canadian medical missionary, who was regarded as a pioneer in women's health care for her work as a member of, and one of the only women in, the Canadian Presbyterian Church Mission in the Honan (currently referred to as Henan) province of China. She played an important role in treating visceral leishmaniasis (kala azar) disease and in creating female specific hospitals where women could be treated as first-class citizens.