OTSA

AcronymDefinition
OTSAOklahoma Tribal Statistical Area (Census Bureau geographic area for Oklahoma tribes formerly having a reservation)
OTSAOffice of Tax Shelter Analysis (IRS)
OTSAOverseas Trade Show Agencies Ltd. (sales and marketing company)
OTSAOPTEC Threat Support Activity
OTSAOccupational Therapy South Australia (Walkerville, South Australia, Australia)
OTSAOptical Storage Technology Association