SGD is the ISO 4217 code of the Singapore dollar, the currency of Singapore.

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

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