GMP
- GNU Multiple Precision Arithmetic Library
- Galápagos Microplate
- Gamone Pwint
- Ganamukti Parishad
- Gaobeidian East railway station
- Gay Men's Press
- Gazza Music Productions
- Gerakan Mansuhkan PPSMI
- Gerkan, Marg and Partners
- Gimpo International Airport
- Glass, Molders, Pottery, Plastics and Allied Workers International Union
- Global Marshall Plan
- Global Monitoring Plan
- GmP
- Good Men Project
- Good manufacturing practice
- Goody Music Productions
- Graduate Medical Program
- Grampian
- Granulocyte-macrophage progenitor
- Greater Manchester Police
- Gross metropolitan product
- Group medical practice
- Guanosine monophosphate
- Guaranteed Minimum Pension
- Guaranteed maximum price
- GxP
- Hyundai Electric Global Modular Platform
- Martin GMP