| MTOA | Maharashtra Truck Owners Association 
| Others |
| MTOA | Maine Truck Owners Association
| Others |
| MTOA | Marine Trader Owners Association
| Others |
| MTOA | Marine Trawler Owner Association
| Others |
| MTOA | Marine Trawler Owners Association
| Others |
| MTOA | Memory Test for Older Adults
| Others |
| MTOA | Michigan Tactical Officers Association
| Others |
| MTOA | Middle Tennessee Orphan Alliance
| Others |
| MTOA | Midland Tree Officers Association
| Others |
| MTOA | Midwest Tactical Officer Association
| Others |
| MTOA | Midwest Tactical Officers Association
| Others |
| MTOA | Mississippi Tactical Officers Association
| Others |
| MTOA | Multi Tracker Optimization Algorithm
| Others |
| MTOA | Municipal Tree Officers Association
| Others |
| MTOA | Municipal Tree Officers' Association
| Others |