| Official Name: | Hartford |
| Settlement Type: | Unincorporated Community |
| Pushpin Map: | Indiana#USA |
| Subdivision Type: | Country |
| Subdivision Name: | United States |
| Subdivision Type1: | State |
| Subdivision Name1: | Indiana |
| Subdivision Type2: | County |
| Subdivision Name2: | Ohio |
| Subdivision Type3: | Township |
| Subdivision Name3: | Union |
| Elevation Ft: | 509 |
| Timezone: | Eastern (CST) |
| Utc Offset: | -6 |
| Timezone Dst: | CDT |
| Utc Offset Dst: | -5 |
| Coordinates: | 38.9931°N -84.9569°W |
| Postal Code Type: | ZIP code |
| Postal Code: | 47001 |
| Area Code: | 812, 930 |
| Blank Name: | GNIS feature ID |
| Blank Info: | 435824 |
Hartford is an unincorporated community in Union Township, Ohio County, in the U.S. state of Indiana.
Hartford was laid out about 1817.[1] In its peak years, Hartford was a point on the stagecoach route from Madison to Aurora.[2] Before the flood of 1937 there were four mills, and a general store which opened up in 1978 and closed in the mid-1980s.
A post office was established at Hartford in 1844, and remained in operation until it was discontinued in 1891.[3]
Laughtery Creek lies to the north of the community.