| Official Name: | Harmony, Arkansas |
| Pushpin Map: | Arkansas#USA |
| Pushpin Label: | Harmony |
| Subdivision Type: | Country |
| Subdivision Name: | United States |
| Subdivision Type1: | State |
| Subdivision Name1: | Arkansas |
| Subdivision Type2: | County |
| Subdivision Name2: | Johnson |
| Timezone: | Central (CST) |
| Utc Offset: | -6 |
| Timezone Dst: | CDT |
| Utc Offset Dst: | -5 |
| Elevation Ft: | 627 |
| Coordinates: | 35.5481°N -93.5558°W |
| Area Code: | 479 |
| Blank Name: | GNIS feature ID |
| Blank Info: | 71909 |
Harmony is an unincorporated community located along Arkansas Highway 103 in Johnson County, Arkansas, United States. It is the location of Harmony Presbyterian Church, which is a historic church listed on the National Register of Historic Places.