| Henry Sloane Cooper | |
| Constituency1: | Toronto Northwest -Seat B |
| Term Start1: | 1919 |
| Term End1: | 1923 |
| Predecessor1: | William McPherson |
| Successor1: | Arthur Nesbitt |
| Party: | Liberal |
| Birth Date: | 12 September 1888 |
| Birth Place: | Davisville, Ontario |
| Occupation: | Embroidery manufacturer |
| Allegiance: | Canada |
| Serviceyears: | 1914-1918 |
| Rank: | Captain |
| Unit: | 3rd Battalion (Toronto Regiment), CEF |
| Battles: | Western Front |
| Awards: | Military Cross and bar |
Henry Sloane Cooper (September 12, 1888 - 1970) was an Ontario embroidery manufacturer and political figure. He represented Toronto Northwest in the Legislative Assembly of Ontario from October 20, 1919, to May 10, 1923, as a Liberal member.[1]
He was born in the village of Davisville, Ontario, the son of Hugh Cooper and Eliza Sloane, and educated in Toronto and at the Ontario Agricultural College in Guelph.
Cooper served as an officer, rising to captain, in the 3rd Battalion (Toronto Regiment), CEF during World War I. He enlisted at CFB Valcartier on 23 September 1914, and received a Military Cross and Bar during his service.[2]