| Acronym | Definition |
|---|
| ONFA➣Ontario Nuclear Funds Agreement |
| ONFA➣Orkney Norway Friendship Association (Orkney Islands, Scotland) |
| ONFA➣Ocala National Forest Association (Florida, USA) |
| ONFA➣Ontario North Fishing Adventures (Ontario, Canada) |
| ONFA➣Other Net Foreign Assets |
| ONFA➣Overall New Funds Account |
| ONFA➣Oncopeltus Fasciatus |
| ONFA➣Of No Fixed Abode |
| ONFA➣Opera Nazionale Figli Aviatori |