Reconstituted leaf, a paper-like substance made from small tobacco pieces. See Cigarette

R. L. Stine, an American author

Rugby league

Ralph Lauren, American fashion designer

The Acura RL, an automobile

Roguelike games, games similar to Rogue

NL, another complexity class occasionally referred to as RL

Royal League

Rocket launcher

R. L. Huggar, a R&B singer

Real Life, other uses (Disambiguation page for groups films, etc.)

Real life phrase (internet slang)

Royal Phnom Penh Airways, IATA airline designator

RLP, a complexity class in computational complexity theory frequently referred to as RL

Relocker, a mechanism designed to keep a safe locked during a burglary attempt

Registered Locksmith, as awarded by the Associated Locksmiths of America

RL circuit, a circuit with a resistor and an inductor

Reinforcement Learning, a kind of learning in Artificial Intelligence field