GARP
- Address Resolution Protocol
- GARP Study
- Generic Attribute Registration Protocol
- Genetic Algorithm for Rule Set Production
- Global Association of Risk Professionals
- Global Association of Risk Professionals
- Global Atmospheric Research Programme
- Investment management
- Monkey D. Garp
- Revealed preference
- The World According to Garp
- The World According to Garp (film)
- Torkild Garp