| Abbreviation | Definition |
|---|---|
| GDL | Genesee District Library |
| GDL | Global Digital Library |
| GDL | Gnome Development Library |
| GDL | GNOME Docking Library |
| GDT | Grand Dictionnaire Terminologique |
| GEL | Gnu Embedded Libraries |
| GELA | Greater Edmonton Library Association |
| GenPharmacol | General Pharmacology (Oxford) |
| GEPL | Glen Ellyn Public Library |
| GFL | Global Fiducials Library |
| GFRL | Gaynor Family Regional Library |
| GGL | Generic Geometry Library |
| GGL | Graph Grammar Library |
| GHCL | Garden Home Community Library |
| GHL | Global Health Library |
| GHL | Government and Heritage Library |
| GigNasMest | Gigiena Naselennykh Mest (Hygiene in Populated Places) |
| GigSanit | Gigiena i Sanitariya (Moscow) |
| GigTrProfZabol | Gigiena Truda i Professional'nye Zabolevaniya (Labor Hygiene and Occupational Diseases) (Moscow) |
| GIL | Generic Image Library |