This page explains the full form, abbreviation, and meaning of OSSI in the Business category.
OSSI stands for:
Outback Steakhouse
OSSI is an abbreviation that can have different meanings depending on the context in which it is used.
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Open Source Software Institute, Operating Systems Support and Integration.
Office of School Support and Improvement | One Stop Shopping Initiative | Open Source Satellite Initiative | Operational Service Status Indicator | Organizational Science Summer Institute.