| Acronym | Definition |
|---|
| SMTD | Springfield Mass Transit District (Illinois) |
| SMTD | Syndicat Mixte des Transports du Douaisis |
| SMTD | Sensor Measured Texture Depth (road maintenance) |
| SMTD | School of Music, Theatre & Dance (University of Michigan; Ann Arbor, MI) |
| SMTD | Syndicat Mixte pour Le Traitement des Déchets (French: Union for Mixed Waste Treatment) |
| SMTD | Spare Me the Details |
| SMTD | Supervisory Management Training and Development |
| SMTD | System Maintenance Technical Document |
| SMTD | Structure Métallo-Textile Démontable (French: Structural Metal-Textile Removable) |