PDSD may refer to the following:
Parallel and Distributed Solutions Division of Intel Corporation Penn-Delco School District, a public school district in Delaware County, Pennsylvania Phoenix Day School for the Deaf, a state-run public school in Phoenix, Arizona; see Arizona State Schools for the Deaf and Blind Proton-Driven Spin Diffusion, a mechanism in solid-state NMR by which dipolar-coupled nuclear spins exchange polarization indirectly through nearby protons.