GLS

• GBAS landing system, an aircraft landing system
• GLS light bulb, a type of light bulb used for general lighting service
• Generalized least squares, in statistics
• Global location sensor
• Glutaminase, a gene and enzyme
• Gray leaf spot, a fungal plant disease
• Guided local search, a search algorithm

• General Logistics Systems, a Dutch logistics company
• Genesis Lease (NYSE: GLS), a former Bermudan aircraft leasing company
• Government Legal Service, former name of a UK Government group
• University of Chicago Graduate Library School
• Glasgow Literary Society, Scotland
• Global Linguist Solutions, an American translation company
• GLS Bank, a German ethical bank
• GLS University, in Ahmedabad, India

• Games, Learning & Society Conference
• Georgetown Leadership Seminar
• Global Leaders' Summit

• Glaisdale railway station (Station code), in England
• Gloucestershire, England
• Scholes International Airport at Galveston (IATA and FAA LID codes), Texas, US

• Guy L. Steele Jr. (born 1954), American computer scientist
• Mercedes-Benz GLS, an automobile

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