| Abbreviation | Definition |
|---|---|
| SMLS | Saint Michael Lutheran School |
| SMLS | St Matthew's Lutheran School |
| SMM | Serving My Master |
| SMO | Student Missions And Outreach |
| SMOA | St Mary of the Angels |
| SMOB | St Marys Old Boys |
| SMOG | St Mark's Opportunities Group |
| SMOJ | Sweet Mother Of Jesus |
| SMP | Sisters of Mary of the Presentation |
| SMPT | Society for Mormon Philosophy and Theology |
| SMSC | Spiritual, Moral, Social, and Cultural values |
| SMSO | Singapore Muslim Students Overseas |
| SMT | Sahih Muslim Translation |
| SMT | Satanic Mission Trinity |
| SMT | Shared Ministry Team |
| SMTM | Stephen Ministry Training Manual |
| SMWA | Saint Michael's World Apostolate |
| SMWA | Southwark Muslim Women's Association |
| SMWA | St. Michaels World Apostolate |
| SNB | Schoolbooks and Brimstone |