RML

RML may refer to:


 * RML Group, a motorsports and high performance engineering company
 * RML 380Z, an 8-bit computer built in Britain
 * Ratmalana Airport (IATA: RML), near Colombo, Sri Lanka
 * Ram Manohar Lohia, 20th-century Indian independence activist and socialist political leader
 * Reuters Market Light, a phone service to provide Indian farmers with timely information
 * Revised Marriage Law, a 1980 revision of the New Marriage Law in China
 * Riemann Musiklexikon, a music encyclopedia
 * Rifled muzzle loader, a type of gun common in the 19th century
 * AEC Routemaster, a type of double-decker bus
 * Rocket Madsen Space Lab (RML Spacelab), Copenhagen, Denmark
 * Rocky Mountain Laboratories, a research institute in Montana, United States
 * Roddenbery Memorial Library, in Cairo, Georgia, United States
 * Royal Mail Lines, once a major shipping company, the successor to the Royal Mail Steam Packet Company