| Abbreviation | Definition |
|---|---|
| SCP | Sun Certified Programmer |
| SCRAM | Safety Control Rod Ax Man |
| SCRAM | Secondary Control Rod Axe Man |
| SCRAM | Situation Critical Reactor Axe Man |
| SCREA | State Certified Real Estate Appraiser |
| SCSC | Senior Citizen Services Coordinator |
| SD | Senior Deacon |
| SD | Site Director |
| SD | Somewhat Dependable |
| SD | Sound Designer |
| SD | Space Detective |
| SD | Supervisor Duty |
| SDA | Severe Disability Allowance |
| SDE | Software Development Engineer |
| SDE | Sub Divisional Engineer |
| SDM | Sub-Divisional Magistrate |
| SDPO | Senior Dynamic Positioning Officer |
| SDRO | Supervisory Deputy Returning Officer |
| SE | Sales Engineer |
| SE | Sales Expert |