- AARB stands for Amics de l’Art Romànic del Bages (Catalan cultural organization)
- AARB stands for American Association for Research in Baghdad (now The American Academic Research Institute in Iraq; Chicago, IL)
- AARB stands for Art and Architecture Review Board
- AARB stands for Advanced Air Refueling Boom
- AARB stands for Acid-Alcohol Resistant Bacilli
AARB