Agg or AGG may refer to:
Aggression is overt, often harmful, social interaction with the intention of inflicting damage or other unpleasantness upon another individual.
The Aggregat series was a set of ballistic missile designs developed in 1933–45 by a research program of Nazi Germany's army (Wehrmacht).
Agglutination is a process in linguistic morphology derivation in which complex words are formed by stringing together morphemes without changing them in spelling or phonetics.
Aggie Bonfire was a long-standing tradition at Texas A&M University as part of the college rivalry with the University of Texas at Austin.
Aggregate Industries, a member of LafargeHolcim, is a company based in the United Kingdom with headquarters at Bardon Hill, Coalville, Leicestershire.
Aggi is an Italian female given name. It may also be a diminutive form of the given names Agamemnon, Agata, Agatha, or Agnes.
Aggressive mimicry is a form of mimicry in which predators, parasites or parasitoids share similar signals with a harmless model, allowing them to avoid being correctly identified by their prey or host.
Aggressive Inline Skating is a form of inline skating executed on specially designed inline skates with focus on grinding and spins.
The Aggregate Level Simulation Protocol (ALSP) is a protocol and supporting software that enables simulations to interoperate with one another.