AEP may refer to:

Companies and organizations Alpha Epsilon Pi, an international Jewish college fraternity American Electric Power, an electric utility company Associação dos Escoteiros de Portugal (Scout Association of Portugal), interreligious and coed Scouting organization Association of Educational Psychologists, British trade union Association of Electricity Producers, a trade association for the UK electricity market Association of Environmental Professionals, a non-profit organization Australian Equality Party

Software .aep, Adobe After Effects project file extension Android Extension Pack, a superset of OpenGL ES 3.1 introduced by Google in 2014 AppleTalk Echo Protocol, a protocol designed to test the reachability of network nodes

Sports AEP Olympias BC, alternate name for Olympiada Patras BC, a Greek professional basketball club AEP Paphos FC, a Cypriot soccer club Asociacion Española de Pickleball (Spanish Pickleball Association), the national governing body of pickleball in Spain

Other uses Aeroparque Jorge Newbery in Buenos Aires, Argentina (IATA airport code AEP) The Algebraic Eigenvalue Problem, a mathematical book by James H. Wilkinson, published in 1965 Aminoethylpiperazine, an organic compound Annual exceedance probability, a measure of flooding probability Asparagine endopeptidase, an enzyme Asymptotic equipartition property, a mathematical property used extensively in information theory Attenuated Energy Projectile Auditory evoked potential

See also AEP Building, Columbus, Ohio AEP v. Connecticut, a 2011 US Supreme Court case Arctic Environmental Protection Strategy (AEPS)