Rel

Rel or REL may mean:

Science and technology

REL, a human gene
the rel descriptor of stereochemistry, see Relative configuration
REL (Rassemblement Européen pour la Liberté), European Rally for Liberty, a defunct French far-right party active in the 1960s
Category of relations or Rel, a mathematical category of sets and relations
Rel attribute, an HTML attribute for indicating a semantic link
Recommended Exposure Limit, a recommended limit for occupational exposures published by the National Institute for Occupational Safety and Health
Rights Expression Language, a machine-processable language used for digital rights management

Rel Dowdell, American screenwriter, film director, film producer, and English/screenwriting educator
Nickname of Arielle Gold, American world champion and Olympic bronze medalist snowboarder
Rel Hunt (born 1974), Australian actor
Nickname of Ariel Schulman (born 1981), American actor, film director, and producer
Robert E. Lee, Confederate general.

Rel (TV series), a 2018 American television sitcom
Rel (time), a fictional Dalek unit of measurement; oftentimes depicted as a measurement of time, but originally used as a measurement of hydroelectricity
Magic: The Gathering Organized Play Rules Enforcement Level
Reaction Engines Limited, a British aerospace company
Religare Enterprises Limited, an Indian holding company
Almirante Marcos A. Zar Airport IATA code
Rendille language ISO 639-3 language code, spoken in Kenya