Rep

• rep, the Röntgen equivalent physical, a unit of exposure to radiation
• Rep, a dialect of the Lisp programming language implemented by John Harper
• Rep (clothing), a ribbed woven fabric made from various materials
• Johnny Rep, a former Dutch footballer

Rep is short for:

• Repertory, a theater term
• REP, an x86 assembly language instruction (abbreviation of repeat)
• REP, Intel Corporation's Rotation Engineers Program
• The Republicans (Germany), a political party in Germany
• Representative
• Reputation
• Repetition
• R.E.P., common abbreviation for Recording Engineer Producer, an audio-industry magazine published from the '70s to 1992.
• Reformed Episcopal Church
• Rede dos Emissores Portugueses, an amateur radio organization in Portugal
• The IATA Airport code of Angkor International Airport in Siem Reap, Cambodia