| Official Name: | Etna, Wisconsin |
| Pushpin Map: | Wisconsin#USA |
| Pushpin Label: | Etna |
| Subdivision Type: | Country |
| Subdivision Name: |  United States |
| Subdivision Type1: | State |
| Subdivision Type2: | County |
| Subdivision Name2: | Lafayette |
| Subdivision Type3: | Town |
| Subdivision Name3: | New Diggings |
| Timezone: | Central (CST) |
| Utc Offset: | -6 |
| Timezone Dst: | CDT |
| Utc Offset Dst: | -5 |
| Elevation Ft: | 758 |
| Coordinates: | 42.5658°N -90.3275°W |
| Area Code: | 608 |
| Blank Name: | GNIS feature ID |
| Blank Info: | 1577591 |
Etna (Aetna) is an unincorporated community located in the town of New Diggings, in Lafayette County, Wisconsin, United States. It lies at an elevation of 758 feet (231 m). Originally named Aetna, a local legend has it that a lime kiln representing the spouting of the Sicilian Mount Etna stood on the spot of the community.[1]