OLG
| Acronym | Definition |
|---|---|
| OLG | Oberlandesgericht (German Court) |
| OLG | Ontario Lottery and Gaming Corporation (Ontario, Canada) |
| OLG | on Line Gaming |
| OLG | Our Lady of Guadalupe (Catholic church; various locations) |
| OLG | Office of Local Government |
| OLG | Open Learning Group (est. 1997; South Africa) |
| OLG | Our Lady of the Garden |