| Honorific-Prefix: | The Hon. |
| John Power Howden | |
| Constituency Mp: | St. Boniface |
| Parliament: | Canadian |
| Predecessor: | District was created in 1924 |
| Successor: | Fernand Viau |
| Term Start: | 1925 |
| Term End: | 1945 |
| Office2: | Senator for St-Boniface, Manitoba |
| Appointed2: | William Lyon Mackenzie King |
| Term Start2: | 1945 |
| Term End2: | 1959 |
| Birth Date: | 5 December 1879 |
| Birth Place: | Perth, Ontario, Canada |
| Party: | Liberal |
John Power Howden (December 5, 1879 - November 4, 1959) was a Canadian Member of Parliament and physician.
Howden was born in Perth, Ontario. When he was 12, his family moved to Manitoba[1] where he attended public school in Winnipeg and earned his medical degree at the University of Manitoba before establishing his practice in St. Boniface, Manitoba.[2]
He became active in community life and was elected mayor of St. Boniface serving in the position from 1916 to 1917.[2]
A Liberal, he was first elected to the House of Commons of Canada in the 1925 federal election as the Member of Parliament for St. Boniface and was re-elected in four subsequent elections and served in the House of Commons for two decades, until April 1945 when he was appointed to the Senate of Canada by William Lyon Mackenzie King.[2]
Howden served in the upper house until his death in 1959 several months after suffering from a stroke.