RTL

RTL may refer to:

Media

 * RTL Group, a European TV, radio, and production company
 * RTL Télé Lëtzebuerg, usually referred to simply as RTL
 * RTL (German TV channel)
 * RTL (Hungarian TV channel), formerly known as RTL Klub
 * RTL (French radio)
 * RTL Nederland
 * List of RTL Group's television stations (including part-owned channels)
 * List of RTL Group's radio stations
 * RTL 102.5, Italian radio station unaffiliated with RTL Group
 * RTL 102.5 TV, Italian music television channel, broadcasting live video feed of radio station RTL 102.5
 * RTL9, Luxembourg television channel formerly owned by RTL Group
 * RTL (Croatian TV channel), Croatian television channel formerly owned by RTL Group

Electronics

 * Prefix for some Realtek integrated circuits
 * Register-transfer level or register-transfer logic, of a digital logic circuit
 * Register transfer language, a type of computer language
 * Hewlett-Packard Raster Transfer Language, a subset of PCL
 * Resistor–transistor logic, a class of digital circuits

Others

 * RTL Turboliner, a gas turbine trainset
 * Ride the Lightning, an album by the American heavy metal band Metallica
 * Right-to-left, writing direction of a script
 * Right to life, a belief that humans have a right not to be killed
 * Re-education through labor in the prison system of China
 * Réseau de transport de Longueuil, Quebec, Canada
 * Runtime library, in computer software
 * V/Line RTL, Road Transferable Locomotive, a class of road and rail locomotive