| Lake Chaubunagungamaug | |
|---|---|
| Webster Lake | |
 Name of the lake on a bridge | |
  Lake Chaubunagungamaug  Lake Chaubunagungamaug | |
| Location | Webster, Massachusetts |
| Coordinates | 42°02′30″N 71°50′30″W / 42.04167°N 71.84167°W |
| Type | Lake |
| Basin countries | United States |
| Max. length | 3.25 mi (5.23 km) |
| Max. width | 1.125 mi (1.811 km) |
| Surface area | 1,442 acres (584 ha) |
| Average depth | 13 ft (4.0 m) |
| Max. depth | 49 ft (15 m) |
| Shore length1 | 17 mi (27 km) |
| Surface elevation | 477 ft (145 m) |
| Islands | 8 |
| 1 Shore length is not a well-defined measure. | |
Lake Chaubunagungamaug, also known as Webster Lake, is a lake in the town of Webster, Massachusetts. It is located near the Connecticut border and has a surface area of 1,442 acres. Since 1921, the lake has also been known by a much longer name having 45 letters comprising fourteen syllables: Lake Chargoggagoggmanchauggagoggchaubunagungamaugg. The lake has become famous beyond Central Massachusetts for having the longest name of any geographic feature in all of the United States.