John Milton Platt (April 18, 1840 – September 27, 1919) was a physician and political figure in Ontario, Canada.
He represented Prince Edward in the House of Commons of Canada from 1882 to 1891 as a Liberal member.
[1] He was born in Athol Township, Upper Canada,[1] the son of Dyer Platt and Myria Morgan.
[2] Platt was educated at the Fort Edward Institute in New York state and at Victoria University in Cobourg.
[3] He also served as a public school inspector and as surgeon for the militia.