| Acronym | Definition |
|---|
| GaN | Gallium Nitride |
| GaN | Generative Adversarial Network (artificial intelligence algorithm) |
| GaN | Gran Acuerdo Nacional (Spanish: Great National Agreement; Australia; politics) |
| GaN | Generic Access Network (wireless communications) |
| GaN | Generic Access Network |
| GaN | Global Action Network |
| GaN | Global Accelerator Network |
| GaN | Global Access Network |
| GaN | Global Area Network |
| GaN | Groupe des Assurances Nationales (French: National Insurance Group) |
| GaN | Gas Analysis |
| GaN | Grant Adjustment Notice (various organizations) |
| GaN | Giant Axonal Neuropathy |
| GaN | Good As New |
| GaN | Gosatomnadzor (Soviet NRC) |
| GaN | Gaseous Nitrogen |
| GaN | Grids and Advanced Networks (workshop) |
| GaN | Grant Anticipation Note |
| GaN | Government Affairs News (various organizations) |
| GaN | Geeks and Nerds (technology corporation in Huntsville, AL, USA) |
| GaN | Grazingland Animal Nutrition |
| GaN | Generating and Analyzing Networks |
| GaN | Government Action Network (Amnesty International USA) |
| GaN | Gateway ATM Network |
| GaN | Gas Alarm Notification |
| GaN | Gateway Access Node |