| Official Name: | Achor, Ohio |
| Settlement Type: | Unincorporated community |
| Pushpin Map: | Ohio#USA |
| Pushpin Relief: | yes |
| Pushpin Label: | Achor |
| Subdivision Type: | Country |
| Subdivision Name: | United States |
| Subdivision Type1: | State |
| Subdivision Name1: | Ohio |
| Subdivision Type2: | County |
| Subdivision Name2: | Columbiana |
| Subdivision Type3: | Township |
| Subdivision Name3: | Middleton |
| Unit Pref: | Imperial |
| Timezone: | Eastern (EST) |
| Utc Offset: | -5 |
| Timezone Dst: | EDT |
| Utc Offset Dst: | -4 |
| Elevation M: | 253 |
| Elevation Ft: | 830 |
| Coordinates: | 40.7742°N -80.5417°W |
| Postal Code Type: | ZIP code |
| Postal Code: | 44441 |
| Area Codes: | 330, 234 |
| Blank Name: | FIPS code |
| Blank Info: | 39/00170 |
| Blank1 Name: | GNIS feature ID |
| Blank1 Info: | 1064293 |
Achor is an unincorporated community in Middleton Township, Columbiana County, Ohio, United States. It lies a few miles south of the community of Negley and just west of the state border with Pennsylvania. Once a leading settlement in the eastern portion of the county, it is now virtually a ghost town.
Achor was originally called "The Valley of Achor", and under the latter name was platted around 1806.[1] Variant names included Achorston, Achortown, Anchorstown, and Middleton. A post office called Achor was established in 1816, and remained in operation until 1901.[2]
In 2020, the Valley of Achor Baptist Church, the only original building of the community still standing, burned down.[3] An EF1 tornado struck Achor on April 8, 2020.[4]