SDMA may refer to:
SDMA (drug), related to MDMA (ecstasy) Symmetric dimethylarginine Space-division multiple access, a channel access method used in communication Soft direct memory access, a type of direct memory access (DMA) specific to Xilinx's Multi-Port Memory Controller (MPMC) System direct memory access, a Linux kernel module and userspace library for accessing direct memory access (DMA) using some processors made by Texas Instruments