| Acronym | Definition |
|---|
| UFN➣Ultimate Fight Night (gaming) |
| UFN➣Unbalanced Feistel Network |
| UFN➣Until Further Notice |
| UFN➣User Friendly Naming |
| UFN➣Underground File Network |
| UFN➣Underground Fragging Network (gaming leagues) |
| UFN➣Universal Fighting Network |
| UFN➣Union des Forces Nouvelles (French: Union of New Forces; Cameroon and Senegal) |
| UFN➣Uspekhi Fizicheskih Nauk (Russian scientific magazine; est 1918) |
| UFN➣United Florist Network (New York, NY) |
| UFN➣Undecided for Now |