| Silly | |
| Namenl: | Opzullik |
| Picture-Legend: | Silly town hall |
| Map: | Silly Hainaut Belgium Map.svg |
| Map-Legend: | Location of Silly in Hainaut |
| Arms: | Blason famille be Trazegnies.svg |
| Flag: | Flag of Silly.svg |
| Arrondissement: | Ath |
| Nis: | 51068 |
| Mayor: | Christian Leclercq |
| Majority: | LB - SENS |
| Postal-Codes: | 7830 |
| Telephone-Area: | 068 |
| Web: | www.silly.be |
| Coordinates: | 50.65°N 58°W |
Silly (in French pronounced as /sili/; Dutch; Flemish: Opzullik; Walloon: Chili) is a municipality of Wallonia located in the province of Hainaut, Belgium.
On January 1, 2006, Silly had a total population of 7,995. The total area is 67.68km2 which gives a population density of 118 inhabitants per km2.
The name of the town derives from its stream, called the Sille (French) or Zulle (Dutch), and has no relation to the English word. In the English-speaking world, it has frequently been noted on lists of unusual place names.[1]
The municipality consists of the following districts: Fouleng, Gondregnies, Graty, Hellebecq, Hoves, Silly, Thoricourt, and Bassilly.
See also: List of twin towns and sister cities in Belgium.
Silly is twinned with:
San Miniato, Italy