Surnames U
- Uhler, J. B. (?-?) – doctor
- Uhler, John C. (?-?) – dentist
- Uhler, John Reese (1839, May 3-1911) – doctor
- Uhler, Philip R. (?-1913, Oct. 21) – doctor
- Uhlhorn, Samuel B.P. (?-?) – druggist
- Ulbich, M. R. (?-?) – nurse, midwife
- Ullrich, J. Harry (?-?) – doctor
- Ullrich, Seth S. (?-?) – doctor
- Ulman, Soloman Jay (1865, Sep. 27-?) – doctor
- Ulrich, Harry G. (?-?) – dentist
- Ulrich, Seth S. (?-1904, Nov. 20) – surgeon
- Underwood, H. A. (?-?) – doctor (homeopath)
- United States Dental Rooms – dentist
- Unruh, M. L. (1859-1899, Mar. 16) – doctor
- Upshur, George M. (?-1877, Jun. 27) – doctor
- Urdang, Ruth (?-?) – medical student
- Urie, J. William (1906-1952) – doctor
- Urie, James W. (1863-1942) – doctor
- Urqhardt, Richard A. (?-1914, Apr. 22) – doctor
- Urquhart, Richard A. (?-?) – doctor
- Utz, Jesse J. (?-1849, Jul. 4) – doctor