SEIS
| Acronym | Definition |
|---|---|
| SEIS | Supplemental Environmental Impact Statement |
| SEIS | Shared Environmental Information System (European collaboration) |
| SEIS | Special Education Information System |
| SEIS | Socio-Economic Impact Study |
| SEIS | State Environmental Impact Statement |
| SEIS | Special Education Itinerant Services (preschool education) |
| SEIS | Science and Engineering Information Service |