EP can stand for:

• EP is the IATA code for Iran Aseman Airlines
• Extended play, a music recording (usually consisting of several tracks, but shorter than a typical album)
• European Parliament, the parliamentary body of the European Union
• Evolutionary psychology, a belief that psychology can be better understood in light of evolution
• EP, a singles compilation by The Fiery Furnaces
• EP, a CD by Luna
• ep, a CD by The 77s
• Extra Long Play (VCR format)
• Electric piano, an electric musical instrument popular in the 1960s and 1970s
• "e.p.", notation for En passant in chess
• In Polish locomotives designation EP stands for electric-passenger locomotive.
• EP can be used as an abbreviation for Expansion Pack, as used in gaming.
• Entity paradigm is a Pakistani rock band.

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