SGD is the ISO 4217 code of the Singapore dollar, the currency of Singapore. SGD or sgd can also mean: Saccharomyces Genome Database, a yeast database Sargodha, a Pakistani city Secure global desktop, software by Tarantella, subsequently bought and used by Sun Microsystems and by Oracle Corporation SG Dynamo Dresden, a German association-football club Sliding glass door, a type of sliding door Smart Grid Device, an electronic device for smart grids Sønderborg Airport (IATA code SGD) Spanish Gangster Disciples, an American gang Stars Go Dim, an American pop-rock band Stochastic gradient descent, an optimization algorithm Submarine groundwater discharge, freshwater aquifer seepage into oceans Surigaonon language, based on its ISO 639-3 code sgd