| Abbreviation | Definition |
|---|---|
| NZI | New Zealand Insurance |
| NZILA | New Zealand Insurance Law Association |
| OAIN | Online Auto Insurance News |
| OASDI | Old Age Survivor and Disability Insurance |
| OASDI | Old Age Survivors and Disability Insurance |
| OASDI | Old Age Survivors Disability Insurance |
| OASI | Old Age Survivors Insurance |
| OBIS | Online Brokerage Insurance System |
| OBN | On board notations (for Insurance): |
| OBPI | Option Based Portfolio Insurance |
| OCHI | Office of Consumer Health Insurance |
| OCI | Office of the Commissioner of Insurance |
| OCIA | Oregon Commercial Insurance Agency |
| OCIP | Owner controlled insurance program |
| OCIP | Owner Controlled Insurance Programs |
| OCIP | Owner-Controlled Insurance Program |
| ODCG | On Duty Contract Guide |
| ODI | Ohio Dept of Insurance |
| OFIR | Office of Financial and Insurance Regulation |
| OGI | Office of Group Insurance |