| Day of the Walloon Region | |
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| Official name | French: Fête de la Wallonie |
| Observed by | Wallonia, Belgium |
| Date | Third Sunday in September |
| 2016 date | September 18 |
| 2017 date | September 17 |
| 2018 date | September 16 |
| 2019 date | September 15 |
| Frequency | annual |
| Related to | French Community Holiday |
The Day of the Walloon Region or simply the Day of Wallonia (French: Fête de la Wallonie) is the annual public holiday of Wallonia, the southern region of Belgium. It is celebrated each third Sunday of September.