MTWA
| Acronym | Definition |
|---|---|
| MTWA | Microvolt T-Wave Alternans |
| MTWA | Midwest Travel Writers Association (Fayette, MO) |
| MTWA | Martin Turner's Wishbone Ash (band) |
| MTWA | Maximum Total Weight Authorised |
| MTWA | Mean Temperature of the Warmest Month |
| MTWA | Metro Toronto Wrestling Association |
| MTWA | Maximum Takeoff Weight Authorized |