RL

RL, Rl or rl may refer to:

In arts and entertainment

 * Radio Liberty, US broadcaster
 * Rocket League, a video game

Businesses and organizations

 * Polo Ralph Lauren (NYSE stock ticker symbol)
 * Réseau Luxembourgeois des Amateurs d'Ondes Courtes, an amateur radio organization in Luxembourg
 * Royal Phnom Penh Airways (IATA code)

People known by the given initials

 * R. L. Huggar, an R&B singer
 * RL Grime, American musician, producer

In science and technology

 * RL (complexity), a complexity class of mathematical problems
 * RL circuit, a circuit with a resistor and an inductor
 * Reinforcement learning, an area of machine learning
 * Reduced level, elevations of survey points with reference to a common assumed datum.

Other uses

 * Rl (digraph) in Australian Aboriginal languages
 * Acura RL, an automobile
 * Real life, Internet term
 * Registered Locksmith, US certification
 * Report Long, a type of US Congressional Research Service Report
 * Rugby league, a sport