GSE
- Barcelona Graduate School of Economics
- EGS (disambiguation)
- ESG (disambiguation)
- Fiat Global Small Engine
- GES (disambiguation)
- GGSE (disambiguation)
- GSE Systems
- Gaia-Sausage-Enceladus
- Gaussian Symplectic ensemble
- General somatic efferent fibers
- Generic Stream Encapsulation
- Generic Substation Events
- Georgian Soviet Encyclopedia
- Georgian State Electrosystem
- Ghana Stock Exchange
- Ghanaian Sign Language
- Gluten sensitive enteropathy
- Golden State Exams
- Gothenburg City Airport
- Government-sponsored enterprise
- Grape seed extract
- Grapefruit seed extract
- Great Soviet Encyclopedia
- Green Street Elite
- Ground support equipment
- Guwahati Stock Exchange
- SEG (disambiguation)
- SGE (disambiguation)
- Stanford University Graduate School of Education
- XNA Game Studio Express