| Acronym | Definition |
|---|
| SASI | Shugart Associates System Interface |
| SASI | Shugart Associates Systems Interface (forerunner of SCSI, Small Computer System Interface) |
| SASI | Senior Aerospace Science Instructor (AFJROTC) |
| SASI | Sonoran Arthropod Studies Institute (Tucson, Arizona) |
| SASI | South Australian Sports Institute (est. 1982; South Australia Office for Recreation and Sport) |
| SASI | Southeast Asian Serials Index |
| SASI | Separation Anxiety Symptom Inventory |
| SASI | School Administration Student Information System |
| SASI | Synergy Asset Strategies Inc. (St. Augustine, FL) |
| SASI | Swanson Analysis Systems, Inc (now ANSYS, Inc.) |
| SASI | Student Athlete Summer Institute |
| SASI | Substance Abuse Screening Instrument |
| SASI | Supervisory Aviation Safety Inspector (FAA) |
| SASI | System and Software Integrity |