AOR can refer to any of the following:

• AOR is an abbreviation of Album Oriented Rock. It can also be an abbreviation for Adult Oriented Rock.
• AOR is the US Navy hull classification symbol for a Replenishment Oiler.
• AOR is the Canadian Navy's classification for the Auxiliary Oiler Replenishment ships of the Protecteur Class.
• AOR is a US military acronym for "Area of Responsibility", referring to the geographic region assigned to a strategic military command.