Joseph Octave Reaume (August 13, 1856 – June 12, 1933) was an Ontario physician and political figure. He represented Essex North in the Legislative Assembly of Ontario from 1902 to 1914 as a Conservative member. He was born in Anderdon Township, Essex County, Canada West, the son of farmer Oliver Reaume, and received his teacher's certificate in 1873. He taught school and pursued further studies in Toronto and Sandwich (later Windsor). He went on to study medicine at the Detroit College of Medicine and Trinity College, setting up practice in Windsor. He married Catherine Turner in 1887.