DIAA
| Acronym | Definition |
|---|---|
| DIAA | Delaware Interscholastic Athletic Association |
| DIAA | Dairy Industry Association of Australia |
| DIAA | Democracy in Action Award (Union League Club of Chicago award) |
| DIAA | Deer Industry Association of Australia |
| DIAA | Defense Intel Alumni Association |
| DIAA | Dayton Industrial Athletic Association |