| Acronym | Definition |
|---|
| SMMO➣Sarah McLachlan Music Outreach (arts project; Vancouver, Canada) |
| SMMO➣Strontium Magnesium Molybdenum Oxide |
| SMMO➣Soluble Methane Mono-Oxygenase |
| SMMO➣Short Message Mobile Originated |
| SMMO➣Strictly Monomer Molecular Orbital |
| SMMO➣Ship's Maintenance Management Officer |
| SMMO➣Southern Maryland Music Online (resource) |