CSSO

AcronymDefinition
CSSOContractor Special Security Officer
CSSOChief State School Officer
CSSOChief Student Services Officer (California community colleges)
CSSOClotted Symmetric Sexual Organ (Japanese band)
CSSOComputer System Security Officer
CSSOCustomer Service, Sales & Operations
CSSOComputer Special Security Officer
CSSOCommunications-Computer Systems Security Officer
CSSOCLIC (Cancer and Leukaemia in Childhood) Sargent Symphony Orchestra (UK)
CSSOChild Safety Support Officer (Australia)
CSSOCompliance Sampling and Support Organization
CSSOCombat Service Support for Operations
CSSOCantorial School Student Organization (Jewish Theological Seminary)