GLR

GLR may refer to:


 * Central Mountain Air, a Canadian airline
 * Gartell Light Railway, in England
 * Gaylord Regional Airport, in Michigan
 * Glaro-Twabo language
 * Glória Station, of the Rio de Janeiro Metro
 * Gloucester Road tube station, London, London Underground station code
 * George Lincoln Rockwell, of the American Nazi Party
 * Green Label Relaxing, a sub-label of the Japanese clothing brand United Arrows
 * GLRA2, a protein
 * GLR parser
 * Glycine receptor
 * Greater London Radio, now BBC Radio London
 * Grupo Latino de Radio, an American radio network
 * Gwalior Light Railway, in India