ATEI
| Acronym | Definition |
|---|---|
| ATEI | Asociación de Televisión Educativa Iberoamericana |
| ATEI | Amusement Trade Exhibition International |
| ATEI | AFSCME (American Federation of State, County, and Municipal Employees) Training and Education Institute |
| ATEI | Advanced Technical Engineering, Inc. |
| ATEI | Analyse et Traitement Electronique de l'Information |