WJA
| Acronym | Definition |
|---|---|
| WJA | Web Jet-Admin |
| WJA | Women's Jewelry Association |
| WJA | Web JetAdmin (HP software) |
| WJA | World Jurist Association (est. 1963; Bethesda, MD) |
| WJA | Welsh Judo Association (UK) |
| WJA | Water Jetting Association (UK) |
| WJA | Wharton's Jelly Area (obstetrics and gynecology) |