ROR

The acronym ROR may refer to:

• RAR-related orphan receptor
• Ror community or the Ror caste of North India
• ROR, the IATA code for Palau International Airport
• Rate of return, a comparison of the money earned or lost on an investment to the amount of money invested
• Risk of ruin, in gambling and investing
• RipOff Report, a consumer advocacy website
• Societatea Română de Radiodifuziune, a member of the European Broadcasting Union
• Rhythms of Resistance, a network of political percussion bands
• Release on own recognizance, in legal terminology, a common police shorthand or expression
• Reach Out and Read, an American non-profit organization that advocates for childhood literacy
• Ragnarok Online Republic, also known as Ragna Republic
• Reague of Regends, a pun on League of Legends
• Raff out Roud
• Rules of the Road (nautical)
• Right Of Return, describing a consumers' right to return goods to a vendor
• Reaching Out Romania, a Romanian non-governmental charitable organization

In science

• Rate of reaction, in chemistry

In biology

• Receptor tyrosine kinase-like orphan receptors in biochemistry, members of the receptor tyrosine kinase family of cell surface receptors
• RAR-related orphan receptors, members of the nuclear receptor family of intracellular transcription factors
• An ether, two organic R groups connected to oxygen (R-O-R)

In computers

• Remote outdoor router
• Resources of a Resource, an XML format for describing common website objects to search engines
• Age of Empires: The Rise of Rome, an expansion to the video game Age of Empires
• Rigs of Rods, a multi-simulation game which uses soft-body physics
• ROtate Right, see circular shift, a common instruction in assembly language
• Ruby on Rails, an open source web application framework