| USS | Silversides Submarine 
| Others |
| USS | The United States Of Saturn
| Others |
| USS | Uberschlag Schutz System
| Others |
| USS | Ubiquitous Synergy Seeker
| Others |
| USS | Ultimate Shear Stress
| Others |
| USS | Ultimate Short Shifter
| Others |
| USS | ultrasound scan
| Others |
| USS | Ultrasound Scan Suggest
| Others |
| USS | Uncorrected Sum Of Squares
| Others |
| USS | Under Seat Steering
| Others |
| USS | Undergraduate Student Services
| Others |
| USS | Underground S Secret
| Others |
| USS | Unformatted System Services
| Others |
| USS | Uniformly Spaced Subcarriers
| Others |
| USS | Union Syndicale Suisse
| Others |
| USS | United Seamen's Service
| Others |
| USS | United Ship Of Stacey
| Others |
| USS | United Solar Systems
| Others |
| USS | United Space Ship
| Others |
| USS | United Star Ship
| Others |
| USS | United Star Space
| Others |
| USS | United State Ship
| Others |
| USS | United States Senate
| Others |
| USS | United States Ship
| Others |
| USS | United States Ships
| Others |
| USS | United States Spaceship
| Others |
| USS | United States Spy
| Others |
| USS | United States Standard
| Others |
| USS | United States Starship
| Others |
| USS | United States Swimming
| Others |
| USS | Unites States Ship
| Others |
| USS | Universal Spine System
| Others |
| USS | Universal Star Ship
| Others |
| USS | Universe Star Ship
| Others |
| USS | Universities Superannuation Scheme
| Others |
| USS | University Student Senate
| Others |
| USS | Unix System Services
| Others |
| USS | Unlimited Super Stock
| Others |
| USS | Unstable Steady State
| Others |
| USS | Unusual Star Shape
| Others |
| USS | Uphill Start Support
| Others |
| USS | Upshaw-Schulman syndrome
| Others |
| USS | Uptake Signal Sequence
| Others |
| USS | Ureterosigmoidostomy
| Others |
| USS | User Submissions System
| Others |
| USS | Utility Support Structure
| Others |