GSM is a common abbreviation for Global System for Mobile Communications (Groupe Spécial Mobile), the European group set up to establish European mobile telephony protocols, and for telephony services using those protocols. The Global System for Mobile communications (GSM: originally from Groupe Spécial Mobile) is the most popular standard for mobile phones in the world. ...

GSM may also refer to:

• The ICAO code for low cost airline Flyglobespan
• Gameshow Marathon (UK game show), a British television series
• Gameshow Marathon (US TV series), an American television series based on the above
• Garrison Sergeant Major, a warrant officer appointment in the British Army
• General Service Medal, a British campaign medal
• Geocentric Solar Magnetospheric coordinate system
• Glass Sport Motors, a former South African car company
• Global Security Master, system used to retrieve securities data from vendors
• Graduate Studies in Mathematics, a series of mathematics texts published by the American Mathematical Society
• Graphic Standards Manual
• A wine blend consisting of approximately equal parts grenache, shiraz, and mourvèdre

gsm may refer to: Flyglobespan Boeing 737-683 registered G-CDKD, landing on Runway 05 Glasgow International Airport, Scotland. ... Gameshow Marathon is a British game show, broadcasted from 2005 to present on ITV1. ... Gameshow Marathon is an American television program, based on the UKs television program of the same name. ... A Garrison Sergeant Major (GSM) in the British Army is the senior non-commissioned officer of a garrison and holds the rank of Warrant Officer Class 1. ... The General Service Medal (GSM) was first introduced in 1918 as an Army and RAF equivalent to the Naval General Service Medal (NGSM). ... The subject of this article may not satisfy the notability guideline or one of the following guidelines for inclusion on Wikipedia: Biographies, Books, Companies, Fiction, Music, Neologisms, Numbers, Web content, or several proposals for new guidelines. ... Graduate Studies in Mathematics (GSM) is a series of graduate-level textbooks in mathematics published by the American Mathematical Society (AMS). ... Grenache is a sweet red grape variety grown primarily for the making of wine. ... Shiraz grapes have a characteristically deep purple color that is reflected in their wine. ... Mourvèdre is a variety of wine grape grown around the world, and is Spains second-most important red wine grape after Garnacha, and was once Provences most popular grape. ...

• Generalized sequential machine in automata theory
• Grams per square metre, an indication of paper density
• A file format and filename extension used by the company Graphisoft for ArchiCAD library parts mainly written in Geometric Description Language (GDL)

• A file format and filename extension , as used by GSM mobile phones and elsewhere (eg asterisk PABX)