RJ

RJ, R&J, or Rj may refer to:

Arts and entertainment

 * Radio jockey, a person who hosts a radio talk show
 * RJ, a raccoon in the comic strip and feature film Over The Hedge
 * R.J. MacReady, the helicopter pilot in the 1982 sci-fi/horror film The Thing
 * RJ, an alpaca in the BT21 brand of Line Friends

Businesses and organizations

 * R. J. Reynolds Tobacco Company
 * Las Vegas Review-Journal, major daily newspaper in Nevada
 * Les Brasseurs RJ, a brewery in Québec
 * Royal Jordanian airlines, of Jordan (IATA airline designator RJ)

In arts and entertainment

 * RJ (rapper) (born 1984), American rapper
 * RJ Mitte (born 1992), American actor
 * RJ Rosales (1974–2011), Australian-Filipino actor and singer
 * R. J. Haddy, special effects artist, contestant on seasons 2 and 5 of the TV series Face Off
 * R. J. Helton (born 1981), an American Idol finalist
 * Ron Jeremy (born 1953), pornographic actor
 * RJ Cyler (born 1995), American actor

In sport

 * RJ Barrett (born 2000), Canadian professional basketball player for the New York Knicks
 * Richard Jefferson (born 1980), former American professional basketball player and ESPN analyst
 * Rick Jeanneret (1942-2023), Canadian hockey announcer for the Buffalo Sabres
 * Roy Jones Jr. (born 1969), former American boxer
 * R.J. Oben (born 2001), American football player (son of Roman Oben)

In other fields

 * RJ Mical (born 1956), inventor and engineer
 * R. J. Scaringe, founder and CEO of Rivian

Places

 * Rio de Janeiro, a Brazilian city
 * Rio de Janeiro (state), a state in Brazil
 * Rajasthan, a state in India

Technology

 * Registered jack, a standardized telecommunication network interface
 * Regional jet, a 35- to 100-passenger class of short-haul airliner
 * Boeing RC-135 Rivet Joint, an American intelligence-gathering aircraft

Other uses

 * RJ (New York City Subway service), a former NYC Subway service, whose route is now served by the J, R, and Z trains.
 * Reproductive justice, a concept that links reproductive rights with social justice
 * Rim job, a sexual act
 * The R Journal, a statistical computing periodical (R J. per ISO 4)