Great Lakes Avengers, fictional comic hero group

Glasgow International Airport, IATA airport code

Greater London Authority, administers Greater London

gamma-Linolenic acid, an omega-6 fatty acid

Grand Larceny Auto, the name used in some jurisdictions for motor vehicle theft

Gangmasters Licensing Authority, a UK regulatory body

Gross leasable area, retail development industry term to indicate the amount of floor space available to be rented

GLA Institute of Technology & Management, Mathura (UP), India.

GLA Group of Institutions, Mathura (UP), India.

GaLactosidase Alpha, an enzyme

Gamma-carboxyglutamic acid, an amino acid important in vitamin K-dependent proteins and found in Gla domains.

Global Liberation Army, A group of fictional Arabic terrorists, similar to Al-Qaeda, in the video game Command and Conquer: Generals