The term or acronym GARP can refer to:
- Garp (ERP), an enterprise resource planning (ERP) system developed by Jeeves Information Systems AB
- Generalized Axiom of Revealed Preference, an axiom in the economic theory of revealed preference
- Generally Accepted Recordkeeping Principles (preceded by "The"), a set of principles describing proper records management practices developed by ARMA International
- Generic Attribute Registration Protocol, a communications protocol
- Genetic Algorithm for Rule Set Production, a computer algorithm to determine ecological niches
- Global Association of Risk Professionals
- Global Atmospheric Research Programme, an international meteorology research programme of the 1970s and 1980s
- Gratuituous Address Resolution Protocol (or ARP announcement)
- Growth at a Reasonable Price, an investing acronym
Or it could refer to the following fictional works or characters:
- Monkey D. Garp, a character in the Japanese anime One Piece
- The World According to Garp, a 1978 novel by John Irving
- The World According to Garp (film), a 1982 film based on Irving's novel, starring Robin Williams