WCTU
| Acronym | Definition |
|---|---|
| WCTU | Woman's Christian Temperance Union (since 1874) |
| WCTU | Wales Cancer Trials Unit (UK) |
| WCTU | White City Terminal Utility (railroad; White City, OR) |
| WCTU | Washington Council of Trout Unlimited (est. 1958; Issaquah, WA) |
| WCTU | World Confederation of Trade Unions |