Prep

Prep is a short form of "preparedness" or preparation.

Prep may also refer to:

Education

 * College-preparatory school or prep school, US, a type of secondary school
 * Preppy or preppie or prep, a US subculture associated with prep schools
 * Preparatory school (United Kingdom) or prep school, a type of primary school
 * Test preparation or test prep

Science

 * PREP, gene encoding prolyl endopeptidase
 * Pre-exposure prophylaxis, disease-protective drug therapy
 * specifically, and now more commonly, the special case of pre-exposure prophylaxis for HIV prevention, better known as PrEP

Other uses

 * PREP Act or PREPA (Public Readiness and Emergency Preparedness Act), a US law that provides for immunity to liability for medicine manufacturers during a public-health emergency.
 * Prep, a novel by Curtis Sittenfeld
 * P-rep, probability of replicating an effect
 * PReP, the PowerPC Reference Platform