| TWMA | Taiwan Woodworking Machinery Association 
| Others |
| TWMA | Tanzania Wildlife Management Area
| Others |
| TWMA | Tarrawarra Museum of Art (Victoria, Australia)
| Others |
| TWMA | Texas Weather Modification Association
| Others |
| TWMA | Thin Wire Monopole Antenna
| Others |
| TWMA | Till We Meet Again
| Others |
| TWMA | Total Waste Management Alliance (UK)
| Others |
| TWMA | Trade Winds Music Accessories (e-commerce; Ballwin, MO)
| Others |
| TWMA | Transformation Wellness and Martial Arts
| Others |
| TWMA | Transmit Wavelength Multiplexer and Amplifier
| Others |
| TWMA | Traumatic White Matter Abnormalities
| Others |
| TWMA | Tunisian Women Mathematicians Association
| Others |