Users
* Australia: Royal Australian Air Force (Glock 19), Australian Customs (Glock 17), and all Australian police services (Glock 17, 19, 22, 23, 26, 27) except the South Australia Police and Victoria Police. A Glock 17 outfitted with a thumb safety was designed specifically for the Tasmania Police.[46]
* Austria: Austrian Armed Forces (Glock 17 designated Pistole 80).[47][48]
* Belgium: Belgian police (Glock 17),[48] Belgian State Security Service.[49]
* Canada: Numerous local law enforcement agencies to include: Calgary, Edmonton, Ottawa, Saskatoon, South Coast British Columbia Transportation Authority Police Service, Toronto.[48]
* Ecuador: National Police, various special police units such as the GOE and GIR.[48]
* Fiji: Tactical Response Unit.[50]
* Finland: The primary service firearm of the police.[51] Also in use by the Defence Forces, Department of Corrections (Vankeinhoitolaitos) and Border Guard.[52]
* France: French Army—certain naval and parachute units (Glock 17).[53]
* Georgia: Special forces.[48]
* Germany: GSG 9 of the German Federal Police,[48] Spezialeinsatzkommandos (special response teams) of several state police departments.
* Greenland: Used by Siriuspatruljen (Glock 20) [54]
* Hong Kong: Special Duties Unit, Hong Kong Police Force.[48]
* Iceland: Icelandic National Police, Víkingasveitin, ICRU.[55][56][57]
* India: National Security Guards (Glock 17).[48]
* Iraq: Iraqi security forces (largest user, purchased 125,163 Glock 19s).[58]
* Jordan: Presidential Guard.[48]
* Latvia: Latvian Military (Glock 17), police.[59]
* Lebanon: Used by various police and army units.[citation needed]
* Lithuania: Lithuanian Armed Forces (Glock 17).[60]
* Luxembourg: Glock 17 and 26 variants used by the Unité Spéciale de la Police of the Grand Ducal Police.[61][62]
* Malaysia: Various forces of Malaysian Armed Forces and Royal Malaysian Police units.[63]
* Mexico: Secretaria de Marina.[48]
* Montenegro: Military of Montenegro [64]
* Netherlands: Military of the Netherlands (Glock 17),[65] Dutch police (Glock 17, about 250 pistols in use as a stopgap measure).[66][67][68]
* New Zealand: New Zealand Police (Glock 17).[69]
* Norway: Royal Norwegian Army (Glock 17 designated P-80).[48]
* Philippines: Philippine National Police, National Bureau of Investigation (NBI), National Intelligence Coordinating Agency (NICA), Philippine Drug Enforcement Agency (PDEA).[48]
* Poland: Polish police,[70] Polish Military Police (Glock 17).
* Russia: Ministry of Internal Affairs (MVD).[71][72]
* Spain: Guardia Civil's UEI (Glock 17).[73]
* Sweden: Swedish Armed Forces (Glock 17 designated Pistol 88 and Glock 19 as Pistol 88B,[74][75]) Swedish Customs Service, Swedish Coast Guard.
* Switzerland : Police (Gendarmerie) Cantonal of Geneva are equipped with the Glock 19[76] The Glarus Cantonal Police also use the Glock 19.
* Thailand: Policeman in 3 south province by G2G buying condition. (Glock 19, 2,238 pcs.) and some policeman, soldier and citizen nationwide. (some models)[48]
* United Kingdom: Greater Manchester Police, Tactical Firearms Unit Specialist Firearms Command of the London Metropolitan Police Service,[77] Police Service of Northern Ireland and certain Scottish Police Specialist Firearms Units (Glock 17).[78]
* United States: Federal Bureau of Investigation, Department of Treasury IRS Criminal Investigation Division,[79] DEA,[80] EPA Criminal Investigation Division, New York City Police Department, Los Angeles Police Department, Philadelphia Police Department, thousands of other agencies at the national, state, and local levels.
* Venezuela[48]