ETHS
| Acronym | Definition |
|---|---|
| ETHS | Evanston Township High School (Illinois) |
| ETHS | Ethernet Segment Sublayer |
| ETHS | East Tennessee Historical Society |
| ETHS | El Toro High School (Lake Forest, CA) |
| ETHS | East Texas Herpetological Society |
| ETHS | E! True Hollywood Stories (cable TV show) |
| ETHS | East Tennessee Hosta Society (Knoxville, TN) |