| Abbreviation | Definition |
|---|---|
| DFL | D Forms Library |
| DFOL | Duvall Friends of the Library |
| DGTAL | Digital Geometry Tools and Algorithms Library |
| DHL | Dag Hammarskjöld Library |
| DHL | Dag Hammarskjöld Library |
| DHSL | Digital Health Sciences Libraries |
| DHSL | Digital Health Sciences Library |
| DIAL | Document Image Analysis for Libraries |
| DIL | Data Integration Library |
| DIL | Digital Image Library |
| DITL | Daystrom Institute Technical Library |
| DJO | Digital Journal of Ophthalmology |
| DKML | Darrel Kreighbaum Memorial Library |
| DLA | Digital Library and Archives |
| DLAC | Donnelly Library Activities Committee |
| DLAC | Downtown Library Advisory Committee |
| DLAD | Digital Library Application Development |
| DLAP | Digital Library of Academic Projects |
| DLAR | David Library of the American Revolution |
| DLAS | Delaware Library Access Services |