GDL

'GDL' may refer to:

★ 'GDL', the IATA airport code for Don Miguel Hidalgo y Costilla International Airport in Guadalajara, Mexico.

★ Godley railway station, England; National Rail station code GDL

★ Grand Duchy of Lithuania

★ GNU data language

★ Geometric Description Language

★ Graph Definition Language

★ Game description language

★ GNOME Developers Library

★ The Graduate Diploma in Law, also know as the Common Professional Examination

★ Gas dynamic laser

★ ''Gewerkschaft Deutscher Lokomotivführer'', a German trade-union present in train companies

★ Glucono delta-lactone, a natural food additive

★ Graduated driver's licenses, a system used for identifying different tiers of drivers used by some states in the United States