| Williston, Ohio | |
| Settlement Type: | Unincorporated community & Census-designated place |
| Mapsize: | 250px |
| Subdivision Type: | Country |
| Subdivision Name: | United States |
| Subdivision Type1: | State |
| Subdivision Name1: | Ohio |
| Subdivision Type2: | County |
| Subdivision Type3: | Township |
| Subdivision Name3: | Allen |
| Unit Pref: | Imperial |
| Area Footnotes: | [1] |
| Area Total Km2: | 1.58 |
| Area Land Km2: | 1.58 |
| Area Water Km2: | 0.00 |
| Area Total Sq Mi: | 0.61 |
| Area Land Sq Mi: | 0.61 |
| Area Water Sq Mi: | 0.00 |
| Population As Of: | 2020 |
| Population Total: | 439 |
| Population Density Km2: | 277.24 |
| Population Density Sq Mi: | 718.49 |
| Timezone: | Eastern (EST) |
| Utc Offset: | -5 |
| Timezone Dst: | EDT |
| Utc Offset Dst: | -4 |
| Elevation Ft: | 597 |
| Coordinates: | 41.6025°N -83.3419°W |
| Postal Code Type: | ZIP codes |
| Postal Code: | 43468 |
| Blank Name: | FIPS code |
| Blank Info: | 39-85442 |
| Blank1 Name: | GNIS feature ID |
| Blank1 Info: | 2628987 |
Williston is an unincorporated community and census-designated place in northern Allen Township, Ottawa County, Ohio, United States, located along State Route 579. It is located in the northwestern part of the state, near Toledo. Its ZIP code is 43468. Its population was 439 people, according to the 2020 Census.
Local teenagers attend Genoa Area High School.