| Thieu | |
| Settlement Type: | district |
| Subdivision Type: | Country |
| Subdivision Type1: | Region |
| Subdivision Type2: | Province |
| Subdivision Type3: | Municipality |
| Subdivision Name3: | Le Rœulx |
| Coordinates: | 50.4747°N 4.0958°W |
| Population Note: | Source: NIS |
| Postal Code Type: | Postal code |
| Postal Code: | 7070 |
| Area Code Type: | Area code |
| Area Code: | 064 |
Thieu (Walloon: Tî) is a village of Wallonia and a district of the municipality of Le Rœulx, located in the province of Hainaut, Belgium.