| Acronym | Definition |
|---|
| URD | Urdu (language) |
| URD | Urawa Red Diamonds (football club; Japan) |
| URD | Unit of Recovery Descriptor |
| URD | Underground Residential Distribution |
| URD | User Requirements Document |
| URD | Unrelated Donor (tissue transplantation) |
| URD | Uridine |
| URD | User Requirements Definition (software) |
| URD | Union pour le Renouveau Démocratique (French: Union for Democratic Renewal, Senegal) |
| URD | Upper Respiratory Disease |
| URD | Unité de Recherche Démographique (French: Demographic Research Unit; Togo; est. 1975) |
| URD | Union for Renewal and Democracy (Chad) |
| URD | User Root Directory |
| URD | You Are Drawing (online anime art school) |
| URD | Unión Revolucionaria Democrática (Revolutionary Democratic Union; political party, Guatemala) |
| URD | Usenet Resource Downloader |
| URD | Unit Reference Designator |
| URD | User Reported Deficiency |
| URD | Unit Release Dose |