GLS

GLS can mean:

* Global Listing Service
* Games, Learning, & Society Conference
* General Lighting Service - a designation of an incandescent lamp standard
* Generalized least squares in the linear model
* Glaisdale railway station, England (National Rail station code GLS)
* Gloucestershire — GLS is the Chapman code for that English county
* Scholes International Airport at Galveston, IATA airport code
* Guided Local Search, a search algorithm in computer science
* Global Locating System, a generalized technique to geolocate remote assets. Used commercially by Skybitz
* General Logistics Systems, a logistics company
* Guy L. Steele Jr., an American computer scientist