| Acronym | Definition |
|---|
| DLSI➣De La Salle Institute (Malaysia) |
| DLSI➣Departament de Llenguatges i Sistemes Informàtics (Catalan: Department of Software and Computing Systems; University of Alicante; Spain) |
| DLSI➣Digital Library Service Integration |
| DLSI➣Davis Langdon and Seah International (various locations) |
| DLSI➣Drug Lifestyle Screening Interview (various locations) |