UDIA
| Acronym | Definition |
|---|---|
| UDIA | Urban Development Institute of Australia |
| UDIA | Urban Development Industry Association (Canberra, Australian Capital Territory, Australia) |
| UDIA | Utah Division of Indian Affairs (est. 1953) |
| UDIA | Urban Design Institute of Australia |
| UDIA | University District Improvement Association (now Marcy-Holmes Neighborhood Association; Minnesota) |
| UDIA | University District Interfaith Alliance (Seattle, WA) |