| Abbreviation | Definition |
|---|---|
| OD | Overnight Deposit |
| ODB | Ontario Drug Benefit |
| ODCE | Office of the Director of Corporate Enforcement (Eire) |
| ODFAP | Ontario Dairy Farm Accounting Project (Mississauga, Ontario, Canada) |
| OE | Open Entry |
| OE | Operating Expenses |
| OE | Owner's Equity |
| OEC | Ordre des Experts Comptables (France) |
| OEI | Outside Equity Interest |
| OER | Operating Expense Ratio |
| OER | Owner Equivalent Rent |
| OETL | Operating Expenses to Total Income |
| OFC | Open Financial Connectivity |
| OFM | Online Financial Management |
| OFQ | Out for Quote |
| OFR | Operating and Financial Review |
| OFTTC | Ontario Film and Television Tax Credit |
| OFX | Open Financial Exchange |
| OHB | On-Hand Balance |
| OHD | Overhead |