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- U.S. Forest Service
- U.S. General Land Office
- U.S. Geological Survey
- U.S. Library Of Congress
- Uccello, Paolo
- Ucello, N/A
- Udaipur
- Ueland, Julie
- Ufer, Walter
- Uhde, T.
- Uhlfelder, Eric
- Ullman, Gayle
- Ulmer Pedersen, Diane
- Ulrich, Charles Frederick
- Ulveczki, Gabor
- Underhill, Irving
- Underwood, Steve
- Ungar, Joanne
