| Official Name: | Stewart, Ohio |
| Settlement Type: | Census-designated place |
| Mapsize: | 250px |
| Subdivision Type: | Country |
| Subdivision Name: | United States |
| Subdivision Type1: | State |
| Subdivision Name1: | Ohio |
| Subdivision Type2: | County |
| Subdivision Name2: | Athens |
| Unit Pref: | Imperial |
| Area Footnotes: | [1] |
| Population As Of: | 2020 |
| Population Total: | 221 |
| Population Density Km2: | auto |
| Population Density Sq Mi: | auto |
| Timezone: | Eastern (EST) |
| Utc Offset: | -5 |
| Timezone Dst: | EDT |
| Utc Offset Dst: | -4 |
| Elevation Ft: | 673 |
| Coordinates: | 39.3081°N -81.8975°W |
| Postal Code Type: | ZIP code |
| Postal Code: | 45778 |
| Area Code: | 740 |
| Blank Name: | FIPS code |
| Blank1 Name: | GNIS feature ID |
| Blank1 Info: | 2628972 |
Stewart is an unincorporated community and census-designated place in central Rome Township, Athens County, Ohio, United States. The population was 221 at the 2020 census.[2] It has a post office with the ZIP code 45778.[3]
Stewart was laid out in 1875, when the railroad was extended to that point.[4] The community was named for D. B. Stewart, the original owner of the town site. A post office has been in operation at Stewart since 1874.[5]
Stewart is located along the Hocking River, just upstream from the confluence of Federal Creek with the river. It is located at the intersection of State Routes 144 and 329.