| Official Name: | Derby, Ohio |
| Settlement Type: | CDP |
| Mapsize: | 250px |
| Subdivision Type: | Country |
| Subdivision Name: | United States |
| Subdivision Type1: | State |
| Subdivision Name1: | Ohio |
| Subdivision Type2: | County |
| Subdivision Name2: | Pickaway |
| Subdivision Type3: | Township |
| Subdivision Name3: | Darby |
| Unit Pref: | Imperial |
| Population As Of: | 2020 |
| Population Footnotes: | [1] |
| Population Total: | 355 |
| Population Density Km2: | auto |
| Population Density Sq Mi: | auto |
| Timezone: | Eastern (EST) |
| Utc Offset: | -5 |
| Timezone Dst: | EDT |
| Utc Offset Dst: | -4 |
| Elevation Ft: | 909 |
| Coordinates: | 39.7639°N -83.2067°W |
| Postal Code Type: | ZIP |
| Postal Code: | 43117 |
| Blank Name: | FIPS code |
| Blank1 Name: | GNIS feature ID |
| Blank1 Info: | 2628883 |
Derby is a census-designated place in central Darby Township, Pickaway County, Ohio, United States. It is assigned the ZIP code 43117.[2] The population was 355 at the 2020 census.
Derby had its start when the railroad was extended to that point.[3] A post office was established at Derby in 1881.[4]