KCL

KCL or KCl may refer to:

Science and technology

 * Potassium chloride (KCl), a metal halide salt
 * Keycode lookup, keycode log, or keycode list
 * Kirchhoff's current law, in physics
 * Kyoto Common Lisp, an implementation of Common Lisp

Other uses

 * King's College London, a public research university in London, UK and a constituent college of the University of London