Grantsburg is a village in Burnett County in the U.S. state of Wisconsin. The population was 1,369 at the 2000 census. The village is located within the Town of Grantsburg.
Grantsburg bills itself the "Gateway to Crex Meadows", the largest wildlife area in Wisconsin. Wisconsin Highway 48 and Wisconsin Highway 70 serve the community. Grantsburg held an early snowmobile skipping event (also known as snowmobile watercross) in 1977 and Grantsburg hosts an annual event in late July.
Grantsburg is located at 45°46′49″N 92°41′4″W / 45.78028°N 92.68444°W / 45.78028; -92.68444 (45.780541, -92.684718).