Williamnagar
Williamnagar 
    Simsanggre  | |
|---|---|
city  | |
Simsang Winter Festival  | |
| Coordinates: 25°29′44″N 90°37′01″E / 25.4954600°N 90.6168200°E | |
| Country | India | 
| State | Meghalaya | 
| District | East Garo Hills | 
| Population  (2001)  | |
 • Total  | 18,251 | 
| Languages | |
| • Regional | Garo | 
| Time zone | UTC+5:30 (IST) | 
| Vehicle registration | Ml-07b 3172 | 
| Climate | Cwa | 
Williamnagar, formerly known as Simsanggre, is the headquarters of East Garo Hills district in the state of Meghalaya in India.