Chap

Chap may refer to:


 * Chap (instrument), a Southeast Asian percussion instrument
 * Chap Petersen (born 1968), American politician and Virginia state senator
 * Chap, Virginia, United States, an unincorporated community
 * The Chap, a British magazine
 * The Chap (band), an experimental pop band from North London
 * Chap, a caste in the Bhakkar district of the Punjab, Pakistan

CHAP may stand for:
 * Challenge-Handshake Authentication Protocol, a computer networking authentication system
 * Combined Heat And Power, cogeneration, the use of a heat engine or a power station to simultaneously generate both electricity and useful heat
 * Comprehensive Health Assessment Program, a tool used for keeping medical histories of people with intellectual disabilities
 * Community Health Accreditation Program, an independent, US not-for-profit accrediting body for health care organizations
 * CHAP-FM, a rebroadcaster of CHYC-FM in Chapleau, Ontario, Canada
 * CHAP (AM), a 1970s radio station in Longlac, Ontario, Canada