| Honorific-Prefix: | The Hon. |
| John Ewasew the second | |
| Office: | Senator for Montarville, Quebec |
| Predecessor: | Louis-Philippe Gélinas |
| Successor: | Dalia Wood |
| Appointed: | Pierre Trudeau |
| Term Start: | 1976 |
| Term End: | 1978 |
| Birth Date: | 13 March 1922 |
| Birth Place: | Grenfell, Saskatchewan |
| Party: | Liberal |
John Ewasew (13 March 1922 - 26 March 1978) was a Canadian lawyer and senator. A Liberal, he was appointed to the Senate of Canada on 17 December 1976 on the recommendation of Pierre Trudeau. He represented the senatorial division of Montarville, Quebec until his death.