| Acronym | Definition |
|---|
| ATDO➣American Tap Dance Orchestra |
| ATDO➣Association of Track Day Organisers (UK) |
| ATDO➣Association of Tobago Dive Operators |
| ATDO➣Award Term Determining Official |
| ATDO➣Associazione per il Tiro Dinamico Operativo (Italian shooting association) |
| ATDO➣Attention to Detail Organizing (California) |