| UFO | UHF (Ultra-High Frequency) Follow-On 
| Others |
| UFO | Ulead File for Objects
| Others |
| UFO | Ulead Photoimpact
| Others |
| UFO | Ulead PhotoImpact Ulead File for Objects
| Others |
| UFO | Ultra File Opener
| Others |
| UFO | Ultra Freak Out
| Others |
| UFO | Ultra Freaky Ocassy
| Others |
| UFO | Ultra-Fast Optics
| Others |
| UFO | Un Finished Objects
| Others |
| UFO | Un- Funded Obligation
| Others |
| UFO | Un-Filtered Offering
| Others |
| UFO | Un-Finished Object
| Others |
| UFO | Un-manned Flying Object
| Others |
| UFO | Unappetizing Food Options
| Others |
| UFO | Unbearable Flatulent Odor
| Others |
| UFO | Unbelievable Financial Opportunity
| Others |
| UFO | Uncontrollable Fergie Obsession
| Others |
| UFO | Undefined Fantastic Object
| Others |
| UFO | Undeniably Fanciful Observation
| Others |
| UFO | Under Fourteens Only
| Others |
| UFO | Undercover Fencing Operation
| Others |
| UFO | Underestimated Flying Osmond
| Others |
| UFO | Underground Freak Out
| Others |
| UFO | Underground Funk Operatives
| Others |
| UFO | Undrinkable Fleischmanns Obscenity
| Others |
| UFO | Unemployed Factory Occupant
| Others |
| UFO | UnFinished Object
| Others |
| UFO | Unidentifiable Flying Object
| Others |
| UFO | Unidentified F***ing Object
| Others |
| UFO | Unidentified Fashion Object
| Others |
| UFO | Unidentified Flashing Object
| Others |
| UFO | Unidentified Flipping Object
| Others |
| UFO | Unidentified Flying Object
| Others |
| UFO | Unidentified Flying Objects
| Others |
| UFO | Unidentified Flying Odd-ball
| Others |
| UFO | Unidentified Flying Onion
| Others |
| UFO | Unidentified Foul Odor
| Others |
| UFO | Unidentified Frozen Object
| Others |
| UFO | Unidentified Function Object
| Others |
| UFO | Unidentified Function Of ....
| Others |
| UFO | Unidentified Fur Object
| Others |
| UFO | Unified Film Organization
| Others |
| UFO | Unified Font Object
| Others |
| UFO | Unindentyfied flying object
| Others |
| UFO | Unique and Found Objects
| Others |
| UFO | Unique Famous Outrageous
| Others |
| UFO | Unique Filtered Originals
| Others |
| UFO | Uniquely Fashionable On
| Others |
| UFO | Uniquely Filtered Originals
| Others |
| UFO | united f**king object
| Others |
| UFO | United Father Orbiters
| Others |
| UFO | United Flying Octogenarians
| Others |
| UFO | United Ford Owners
| Others |
| UFO | United Future Organization
| Others |
| UFO | Universal Format Outputter
| Others |
| UFO | Universal Freight Organisation
| Others |
| UFO | University Finance Office
| Others |
| UFO | Unknown Form Object
| Others |
| UFO | Unknown From Outerspace
| Others |
| UFO | Unknown, Forgotten, and Overlooked
| Others |
| UFO | Unleaded Fuel Only
| Others |
| UFO | Unlicensed Female Operative
| Others |
| UFO | Unlimited Financial Opportunity
| Others |
| UFO | Unmanned Flying Objects
| Others |
| UFO | Unobtrusive Flash Objects
| Others |
| UFO | Unofficial Frolijah Obsession
| Others |
| UFO | Unusual Floral Organs
| Others |
| UFO | Unusually Fanatical Orchestra
| Others |
| UFO | Unusually Flat Orange
| Others |
| UFO | Ur Future Obsession
| Others |
| UFO | USB Firewire Organizer
| Others |
| UFO | USE FOCUS and OPTION
| Others |
| UFO | Use For Organization
| Others |
| UFO | User Friendly Odorless
| Others |