EWAC
| Acronym | Definition |
|---|---|
| EWAC | Early Warning and Control |
| EWAC | Emergency Worker and Assistance Center (various organizations) |
| EWAC | Electronic Warfare Aircraft Commander |
| EWAC | Elijah Wood Appreciation Connection (fan club) |
| EWAC | Electronic Warfare Anechoic Chamber |
| EWAC | Emergency Warning And Caution |
| EWAC | European Week Against Cancer (est. 1989; now European Day Against Cancer) |