| Bonlez | |
| Flag Size: | 120x100px |
| Pushpin Map: | Belgium#Europe |
| Pushpin Label: | Bonlez |
| Coordinates: | 50.7°N 4.6833°W |
| Subdivision Type: | Country |
| Subdivision Name: |  Belgium |
| Subdivision Type1: | Region |
| Subdivision Type2: | Province |
| Subdivision Name2: | Walloon Brabant |
| Subdivision Type4: | Municipality |
| Subdivision Name4: | Chaumont-Gistoux |
| Population Density Km2: | auto |
Bonlez is a village of and a district of the municipality of Chaumont-Gistoux, located in the province of Walloon Brabant, Belgium.
The locality has been settled at least since the Bronze Age. The first written mention of the village dates from the Middle Ages. Bonlez Castle is located in Bonlez; the village church is also a historical building, dating in its current appearance largely from 1771, when it was rebuilt according to a design by Laurent-Benoît Dewez. Inside, it contains furnishings from the 15th to 17th centuries.[1]