GL, Gl, or gl may refer to:
Global warming, also referred to as climate change, is the observed century-scale rise in the average temperature of the Earth's climate system and its related effects.
Glastonbury Festival is a five-day festival of contemporary performing arts that takes place near Pilton, Somerset (England).
The Glock pistol, sometimes referred to by the manufacturer as a Glock "Safe Action" pistol and colloquially as a Glock, is a series of polymer-framed, short recoil-operated, locked-breech semi-automatic pistols designed and produced by Glock Ges.m.b.H., located in Deutsch-Wagram, Austria.
Globalization (or globalisation; see spelling differences) refers to the free movement of goods, capital, services, people, technology and information.
Glasgow (; Scots: Glesga /ˈɡlezɡə/; Scottish Gaelic: Glaschu [ˈkl̪ˠas̪əxu]) is the largest city in Scotland, and third largest in the United Kingdom.
The Global Positioning System (GPS), originally Navstar GPS, is a space-based radionavigation system owned by the United States government and operated by the United States Air Force.
Glaucoma is a group of eye diseases which result in damage to the optic nerve and vision loss. The most common type is open-angle glaucoma with less common types including closed-angle glaucoma and normal-tension glaucoma.
Professional wrestling has accrued a considerable nomenclature throughout its existence. Much of it stems from the industry's origins in the days of carnivals and circuses.