| Official Name: | Etna, Indiana |
| Mapsize: | 150px |
| Pushpin Map: | USA Indiana Whitley County |
| Pushpin Label: | Etna |
| Pushpin Map Caption: | Location of Etna in Whitley County |
| Subdivision Type: | Country |
| Subdivision Name: | United States |
| Subdivision Type1: | State |
| Subdivision Name1: | Indiana |
| Subdivision Type2: | County |
| Subdivision Name2: | Whitley |
| Subdivision Type3: | Township |
| Subdivision Name3: | Etna-Troy |
| Timezone: | Eastern (EST) |
| Utc Offset: | -5 |
| Timezone Dst: | EDT |
| Utc Offset Dst: | -4 |
| Coordinates: | 41.2736°N -85.5736°W |
| Elevation Footnotes: | [1] |
| Elevation M: | 284 |
| Elevation Ft: | 932 |
| Postal Code Type: | ZIP code |
| Postal Code: | 46764 |
| Area Code: | 260 |
| Blank Name: | FIPS code |
| Blank Info: | 18-21484[2] |
| Blank1 Name: | GNIS feature ID |
| Blank1 Info: | 434242 |
Etna is an unincorporated town in Etna-Troy Township, Whitley County, in the U.S. state of Indiana.[3]
Etna was platted in 1849. The community was named after Etna, Ohio, the native home of a first settler.[4]
A post office was established at Etna in 1851. The name of the post office was changed to Hecla in 1861, and operated under this name until 1904.[5]
Etna is located at 41.2736°N -85.5736°W.