| Abbreviation | Definition |
|---|---|
| ODPM | O'Dwyer Property Management Ltd. |
| ODT | Optimal Decision Technologies |
| ODTC | of the Darkness Theatre Company |
| ODTC | Oh Dragon Theatre Company |
| ODTC | Open Door Trading Company |
| ODTC | Out Of The Darkness Theatre Company |
| ODV | Open Door Visions |
| ODVD | Organic Direct Vendor Delivery (UK company) |
| ODVI | Oak Drive Ventures Inc |
| ODW | Old Dominion X Press |
| ODW | Organizational Development Worldwide |
| ODX | Old Dominion X Press |
| OEB | One-Envelope Bidding |
| OEC | Office Environment Company |
| OEC | Office Equipment Company of Mobile |
| OEC | Oil Exploration Company |
| OEC | Optic Edge Corporation |
| OEC | Osborne Engineering Company |
| OEC | Osbourne Engineering Company |
| OEC | Overseas Employment Corporation |