| Official Name: | Olena, Illinois |
| Settlement Type: | Unincorporated community |
| Pushpin Map: | Illinois#USA |
| Pushpin Label: | Olena |
| Subdivision Type: | Country |
| Subdivision Name: | United States |
| Subdivision Type1: | State |
| Subdivision Name1: | Illinois |
| Subdivision Type2: | County |
| Subdivision Name2: | Henderson |
| Timezone: | Central (CST) |
| Utc Offset: | -6 |
| Timezone Dst: | CDT |
| Utc Offset Dst: | -5 |
| Elevation Ft: | 620 |
| Coordinates: | 40.7856°N -90.9389°W |
| Area Code: | 309 |
| Blank Name: | GNIS feature ID |
| Blank Info: | 415078 |
Olena is an unincorporated community in Stronghurst Township, Henderson County, Illinois, United States. Olena is located on County Route 6, 3.3miles north-northwest of Stronghurst.[1]
Olena was laid out on August 14, 1838, by Robert Kendall. It had, in the 19th century, a population of approximately 300 inhabitants.