AOR may refer to:

• Adult-oriented rock (disambiguation)
• Arena rock, a style of commercially oriented rock music
• Album-oriented rock, an American FM radio format
• AOR – Spirit of The Alarm, band
• Arab on Radar, an American noise rock band
• AOR (performance), a 1971 performance by Jean-Michel Jarre at the Paris Opera

• Advocates for Opioid Recovery
• Aliquippa & Ohio River Railroad, in Aliquippa, Pennsylvania, United States
• AOR (company) (Authority on Radio Communications, Ltd.), a Japanese manufacturer of radio equipment
• Auckland One Rail, in Auckland, New Zealand

• Agent of record, an insurance term
• Architect of Record, the architecture firm that prepares the construction documents for a new building project
• Agency of record, an advertising term
• Aor, a pen name of R. A. Schwaller de Lubicz (1887–1961)
• A US Navy hull classification symbol: Fleet replenishment oiler (AOR)
• AOR, the IATA airport code for Sultan Abdul Halim Airport, Malaysia
• Aorist, a grammatical aspect of some Indo-European languages, abbreviated "aor."
• App-o-rama, a strategy of completing multiple financial account applications in a short period of time
• Area of responsibility, a United States military acronym referring to the geographic region assigned to a strategic military command
• Atlantic Ocean Region, a part of the Tracking and Data Relay Satellite System
• Sperata aor, a catfish of family Bagridae
• Aur Island in Malaysia, also spelled "Aor"
• Adjusted Odds Ratio, an odds ratio that controls for multiple predictor variables in a statistical model