DSNA stands for Dictionary Society of North America
DSNA stands for Direction des Services de la Navigation Aérienne (French: Air Navigation Services Branch; France)
DSNA stands for Distributed Storage Node Architecture
DSNA stands for Disney Stores North America
DSNA stands for Département de Simulation Numérique des Écoulements et Aéroacoustique (French: Department of Numerical Simulation of Flows and Aeroacoustics)
DSNA stands for Delaware School Nurse Association
DSNA stands for Deep Space Network Array (US NASA)