| Abbreviation | Definition |
|---|---|
| SMAC | Stoughton Media Access Corporation |
| SMAG | Social Media Ad Genius |
| SMAIS | Samt |
| SMBW | Social Media and Brand Week |
| SMCS | School of Media and Cultural Studies |
| SME | Sony Media Entertainment |
| SMFA | Secret Mountain Fort Awesome |
| SMGC | Social Media Gaming Consortium |
| SMILF | Single Mother I'd Like to F*** |
| SMILF | Southie Mama I'd Like to F*** |
| SMKE | Social Media Knowledge Exchange |
| SML | Sunday Morning Live |
| SMMS | Social Media Managing System |
| SMN | St Martin News |
| SMNI | Sonshine Media Network International |
| SMO | Social Media Optimisation& |
| SMP | Saint Mary's Press |
| SMSA | Standard Metropolitan Statistical Area |
| SMW | Schweizerische Medizinische Wochenschrift |
| SMWI | Social Media Week Independent |