| Abbreviation | Definition |
|---|---|
| OFFER | Organic Food and Farming Education and Research |
| OFFMA | Ontario Farm Fresh Marketing Association |
| OFLAC | Oak Farm Leisure Activities Club |
| OFMRDC | Odisha Farm Machineries Research and Development Centre |
| OFMRDC | Odisha Farm Machinery Research and Development Centre |
| OFMRDC | Odisha Farm Machinery Research Development Centre |
| OFN | On Farm Network |
| OFRD | On Farm Research Division |
| OFRN | Organic Farming Research Network |
| OFSP | Orange-Fleshed Sweet Potato |
| OFT | Ontario Farmland Trust |
| OFU | Ohio Farmers Union |
| OFVGA | Ontario Fruit and Vegetable Growers' Association |
| OFWM | On Farm Water Management |
| OGSF | Orange Grove Sun Farm |
| OHPA | Ontario Hay Producers Association |
| OIAI | Ohio Israel Agricultural Initiative |
| OIAP | Office of International Agricultural Programs |
| OIAP | Office of International Agriculture Programs |
| OIMP | Ontario Independent Meat Processors |