Posted in Aviation, Business & Finance, Engineering, Government & Military, Information Technology, Legal CAOS stands for Chemical Analysis Of Samples CAOS stands for Computer-Assisted Orthopaedic Surgery CAOS stands for Chicago Academy of Sciences (Illinois; also seen as CHIAS) CAOS stands for Computer Architecture Operating System CAOS stands for Commercial Adoption of Open Source (The 451 Group service) CAOS stands for Center for Atmosphere Ocean Sciences (New York University, New York)