RL, Rl or rl may refer to:
An RLC circuit is an electrical circuit consisting of a resistor (R), an inductor (L), and a capacitor (C), connected in series or in parallel.
A resistor–inductor circuit (RL circuit), or RL filter or RL network, is an electric circuit composed of resistors and inductors driven by a voltage or current source.
Henry Steinway (born February 8, 1991), better known by his stage name, RL Grime, and also known as Clockwork is an American producer of hip hop, trap, grime and bass music, and member of the Los Angeles electronic music collective WeDidIt.
see List of RLM aircraft for a numerical listing
RLV-TD is the first unmanned flying testbed being developed for the Indian Space Research Organisation (ISRO)’s Reusable Launch Vehicle Technology Demonstration Programme.
Reusable Launch Vehicle—Technology Demonstration Programme is a series of technology demonstration missions that has been conceived by the Indian Space Research Organisation (ISRO) as a first step towards realising a Two Stage To Orbit (TSTO) re-usable launch vehicle.
The RLIF Awards are the Rugby League International Federation's annual major international sporting award for rugby league.
The German Air Ministry (Reichsluftfahrtministerium; RLM) had a system for aircraft designation which was an attempt by the aviation authorities of the Third Reich to standardize and produce an identifier for each aircraft design's airframe type produced in Germany.
The RLIF World Rankings are the ranking system for men's national teams in the sport of rugby league football.