NPOS

AcronymDefinition
NPOSNational Pet Owners Survey
NPOSNetwork Processing Operating System (software; Teja Technologies)
NPOSNew Plymouth Operatic Society (New Plymouth, New Zealand)
NPOSNurse Practitioners of Saskatchewan (Canada; est. 2001)
NPOSNorth Pacific Orthopaedic Society (est. 1925; Portland, OR)
NPOSNorth Pacific Organ and Sound (Redmond, WA)