Wisconsin Rapids is a city in Wood County, Wisconsin, United States. The population was 18,435 at the 2000 census. It is the county seat of Wood County^GR6.

Together with surrounding communities, the Wisconsin Rapids micropolitan area was, according to the 2000 census, home to 48,123 people. The city forms one of the core areas (the other is at Marshfield) of the United States Census Bureau's Marshfield-Wisconsin Rapids Micropolitan Statistical Area, which includes all of Wood County (2000 population: 75,555).