AARP stands for Appletalk Address Resolution Protocol
AARP stands for Association of American Retired Persons
AARP stands for Art and Archaeology Research Papers (School of Oriental and African Studies bulletin; University of London; Cambridge University Press; UK)
AARP stands for Anonymity, Action, Results and Protection
AARP stands for Alert Aircraft Repositioning Plan
AARP stands for Animal Accident Recovery Patrol
AARP stands for Automated Address Range Program (US Census Bureau)