ULTra
| Acronym | Definition |
|---|---|
| ULTra | Urban Light Transport |
| ULTra | Unit Level Training Readiness Assessment (US DoD) |
| ULTra | Utah League of Tandem Riding Addicts |
| ULTra | Underground Legion of Terroristic Research Activists (hacker group) |
| ULTra | Ultra Low-dose Transdermal Estrogen Replacement Assessment |
| ULTra | [not an acronym] WWII codeword for deciphered high-level enemy communications |