Places beginning with SU in Ohio, United States
- Subrosa (historical)
- Success
- Sue-Lin Acres
- Suffield
- Suffield Station
- Suffield, Township of
- Sugar Bush Knolls
- Sugar Bush Knolls, Village of
- Sugarcreek
- Sugar Creek
- Sugar Creek, Township of
- Sugar Creek, Township of
- Sugar Creek, Township of
- Sugar Creek, Township of
- Sugar Creek, Township of
- Sugar Creek, Township of
- Sugar Grove
- Sugar Grove
- Sugar Grove
- Sugar Grove
- Sugar Ridge
- Sugar Tree Ridge
- Sugar Valley
- Suiter
- Sullivan
- Sullivan, Township of
- Sullivants (historical)
- Sulphur Grove
- Sulphur Lick
- Sulphur Springs
- Sulphur Springs
- Sulphur Springs
- Summerfield
- Summerford
- Summerland Beach
- Summerside
- Summerside Estates
- Summersville
- Summit
- Summit
- Summit Beach Park
- Summit County
- Summithill
- Summit (historical)
- Summit (historical)
- Summit Station
- Summit, Township of
- Summitville
- Summitville (historical)
- Sumner
- Sunaire
- Sunbury
- Sunbury
- Sunbury, Village of
- Sundale
- Sundale
- Sunfish, Township of
- Sunny Acres (subdivision)
- Sunnyland
- Sunnymeade (subdivision)
- Sunnyside
- Sunnyview Farms (subdivision)
- Sunrise
- Sunsbury, Township of
- Sunset Beach
- Sunset Harbor
- Sunset Heights
- Sunset Valley
- Sunshine
- Sunshine (historical)
- Sunshine Park
- Sunshine Park (subdivision)
- Sun Valley (subdivision)
- Superior (historical)
- Superior, Township of
- Surprise (historical)
- Sutton, Township of