GLAC
| Acronym | Definition |
|---|---|
| GLAC | Glacier National Park (US National Park Service) |
| GLAC | Germanic Linguistics Annual Conference (various locations; Society for Germanic Linguistics) |
| GLAC | General Ledger Account Code |
| GLAC | Greater Los Angeles County |
| GLAC | Glenbrook Life and Annuity Company |
| GLAC | God Loves a Challenge (band) |
| GLAC | Gladstone Little Athletic Centre (QLD, Australia) |