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 Commission for Historical and Architectural Preservation, a Baltimore, Maryland authority that oversees historic properties in the city CHAP-FM, a rebroadcaster of CHYC-FM in Chapleau, Ontario, Canada CHAP (AM), a 1970s radio station in Longlac, Ontario, Canada
See also CHAP domain, in molecular biology a region of amino acids found in proteins Chap boot, a type of footwear Chap Chap, a village in Iran Chaps (disambiguation) Chappe (disambiguation)