| Use | Civil and state flag |
|---|---|
| Proportion | 1:2 |
| Adopted | May 11, 1965 (first flown on May 12, 1966) |
| Design | A Red Ensign with the shield of the coat of arms of Manitoba in the field |
Variant flag of Manitoba | |
| Name | Canadian Heraldic Authority Design |
| Proportion | 1:2 |
| Design | A Red Ensign with a modified shield of the coat of arms of Manitoba in the field |
The flag of Manitoba was adopted on 4 October 1910. It is a Canadian Red Ensign with a canton from the Union Flag in the upper left corner, and the coat of arms of Manitoba in the lower right.