LGL

LGL may refer to:

Codes

 * LGL, the IATA airport code for Long Lellang Airport, Long Lellang, the state of Sarawak in Malaysia
 * LGL, the ICAO airline code for Luxair, the flag carrier airline of Luxembourg
 * lgl, the ISO 639-3 three-letter language code for Langalanga language

Biology

 * Large granular lymphocyte, a type of white blood cell in the immune system
 * Lown–Ganong–Levine syndrome, a heart disease when the ventricles are pre-excited due to abnormal electrical communication from the atria to the ventricles

Organizations

 * Lycée de Garçons de Luxembourg (Luxembourg Boys' High School), a high school in Luxembourg City, Luxembourg
 * Lithuanian Gay League
 * Ladies Gridiron League, an Australian-based non-for-profit company running a full contact, 7-a-side, women's American football league