OI
From Wikipedia, the free encyclopedia
OI may refer to:
- Owens-Illinois, a Fortune 500 company
- Optical illusion
- Osteogenesis imperfecta, a genetic bone disorder
- Oriental Institute
- Orphans International, a global charitable organization the benefits orphans and abandoned children
- Oratorical Interpretation, a forensics category
- The letter gha, misnamed by ISO as "LATIN LETTER OI", although it is typographically based on Q.