| Official Name: | Signal, Ohio |
| Settlement Type: | Unincorporated community |
| Pushpin Map: | Ohio#USA |
| Pushpin Relief: | yes |
| Pushpin Label: | Signal |
| Subdivision Type: | Country |
| Subdivision Name: | United States |
| Subdivision Type1: | State |
| Subdivision Name1: | Ohio |
| Subdivision Type2: | County |
| Subdivision Name2: | Columbiana |
| Subdivision Type3: | Township |
| Subdivision Name3: | Elkrun |
| Unit Pref: | Imperial |
| Timezone: | Eastern (EST) |
| Utc Offset: | -5 |
| Timezone Dst: | EDT |
| Utc Offset Dst: | -4 |
| Elevation Ft: | 1109 |
| Coordinates: | 40.7983°N -80.6592°W |
| Postal Code Type: | ZIP code |
| Postal Code: | 44432 |
| Area Code: | 330, 234 |
| Blank Name: | FIPS code |
| Blank1 Name: | GNIS feature ID |
| Blank1 Info: | 1065322 |
Signal is an unincorporated community in Columbiana County, Ohio, United States. It is home to the Columbiana County Port Authority Signal rail terminal.
A post office called Signal was established in 1890, and remained in operation until 1959.[1] The origin of the name "Signal" is obscure.[2]