| Acronym | Definition |
|---|
| DCEI➣Dirección de Comunicación Empresarial e Institucional (Spanish: Business and Institutional Communication Directorate; various schools) |
| DCEI➣Development Centre of East Iceland |
| DCEI➣Deka Converging Europe Indicator (DekaBank; economic measurement tool) |
| DCEI➣Directorate of Central Excise Intelligence (UK) |