SDM may refer to:
Technology Sigma-delta modulation Seed-based d mapping, a meta-analytic method for neuroimaging. Software development methodology Cap Gemini SDM, a software system development method originally written by PANDATA. Sparse distributed memory Space-division multiplexing
Transportation Brown Field Municipal Airport, San Diego, US, IATA designator Shieldmuir railway station, Scotland, National Rail code Stadium MRT station, Singapore, MRT station abbreviation Sudimara railway station code in South Tangerang, Indonesia Watergardens railway station, Melbourne, code
Other Scarlet Devil Mansion, a location in Embodiment of Scarlet Devil from the video game series Touhou Project Shared decision-making in medicine Shoppers Drug Mart, a Canadian pharmacy chain Slovenian Democratic Youth () Sociedade de Desenvolvimento Mineiro de Angola, a mining company Species Distribution Modelling, and Species Distribution Models, in ecology Squad designated marksman Squared deviations from the mean, in mathematics Standard days method, a calendar-based method of contraception Sub-divisional magistrate, India SDM, French rapper Maltese Demochristian Students (SDM) (), a Maltese students organisation