AABC may refer to:
Accrediting Association of Bible Colleges American Amateur Baseball Congress Australian Army Band Corps AABC, a pattern of musical phrases forming an incomplete repetition aabc, a type of hand based on suit in poker probability Arthur Andersen Business Consulting, a unit formed by the accounting firm Arthur Andersen Alabama Aquatic Biodiversity Center Anger-Aggression Bidirectional-Causation, a psychologic theory by Vladimir J. Konečni