Places beginning with SO in Wisconsin, United States
- Sobieski
- Sobieski Corners
- Soldiers Grove
- Soldiers Grove, Village of
- Solon Springs
- Solon Springs, Town of
- Solon Springs, Village of
- Somers
- Somerset
- Somerset, Town of
- Somerset, Village of
- Somers, Town of
- Somo, Town of
- Sono Junction
- Soperton
- South Beaver Dam
- South Byron
- South Chase
- South Fork, Town of
- South Itasca
- South Kenosha
- South Lancaster, Town of
- South Madison
- South Milwaukee
- South Milwaukee, City of
- South Randolph
- South Range
- South Superior
- South Wayne
- South Wayne, Village of