PCL

The three letter abbreviation PCL may refer to:

Aviation

• PCL, the IATA code for Captain Rolden International Airport
• Pilot Controlled Lighting, a system by which aircraft pilots can control the lighting of runways and taxiways via radio control
• Pocket check list, a pilot's check list used by the U.S. Navy

Organizations

• Pacific Coast League, a Class Triple-A league in minor league baseball
• Pacific Coast Professional Football League, the shortened name of the Pacific Coast Professional Football League, an American football league, 1940–1948
• Workers' Communist Party (Italy) (PCL, Workers' Communist Party), an Italian political party established in 2006
• Portage County League, a high school sports league in northeastern Ohio, now called the Portage Trail Conference
• Philadelphia Catholic League, a Catholic high school sports league in Philadelphia and surrounding suburbs
• PCL Construction, a general contracting organization in Canada and the United States

Places

• Perry-Castañeda Library at The University of Texas at Austin
• Polytechnic of Central London, now the University of Westminster

Science and technology

• Passive Coherent Location, or passive radar, a radar system exploiting commercial broadcast signals
• Phosphorus pentachloride or Phosphorus trichloride
• Plasma cell leukemia
• Polycaprolactone, a biodegradable polyester
• Posterior cruciate ligament, one of four major ligaments of the knee
• Practical Common Lisp, a book by Peter Seibel on the Common Lisp computer programming language
• Printer Command Language, a printer language from Hewlett-Packard for their printers
• Hare Psychopathy Checklist (PCL-R), a list of psychopathy diagnostic criteria
• The Penguin Client Library, an open source PHP client library to assist with development of 3rd party clients for the MMORPG Club Penguin
• Program Control Language, an interpreted programming language used by the Presentation software package
• Point Cloud Library, an open source project for 3D point cloud data processing

Other

• Personnel security clearance, or security clearance
• a rearrangement of the letters for public limited company, used in Thailand, stands for public company limited