VSEI
| Acronym | Definition |
|---|---|
| VSEI | Virtuoso Server Extension Interface |
| VSEI | Verband Schweizerischer Elektro Installationsfirmen (German: Association of Swiss Electrical Installation Companies; Zurich, Switzerland) |
| VSEI | Volunteers in Service to Education in India, Inc. (est. 1968) |
| VSEI | Veteran Student Enrollment Information (Leeward Community College; Pearl City, HI) |