Flag of Lethbridge
| Proportion | 1:2 |
|---|---|
| Adopted | March 22, 1971 |
| Designed by | Alex Johnston |
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The flag of Lethbridge is the official flag of Lethbridge, Alberta, and was designed in 1967, the year of Canada's centennial. It is based on the flag that was once flown at Fort Whoop-Up.