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- ulnar deviation
- ulnar nerve
- ulosonic acid
- Ulrich Beck
- Ulrich Zwingli
- Ulric Neisser
- Ulsan
- Ulsan Ecological Industrial Park
- Ulsan Museum
- ULSI
- Ulsters
- ultermicrometer
- ultex
- ultimate
- ultimate analysis
- ultimate bearing capacity
- ultimate boundedness
- ultimate capacity
- ultimate capacity of vertically loaded anchor
- ultimate disposal of radioactive waste
- ultimate distribution
- Ultimate Fighting Championship
- ultimate foundation
- ultimate frisbee
- ultimate line