Names starting with U
- Ugbebor, Olabisi (1951 - )
- Uhlenbeck, George (1900 - 1988)
- Uhlenbeck, Karen (1942 - )
- Ulam, Stanislaw (1909 - 1984)
- Ulugh Beg (1393 - 1449)
- Umawi, Abu al (1400 - 1489)
- Upton, Francis (1852 - 1921)
- Uqlidisi, Abu'l (920 - 980)
- Urbanik, Kazimierz (1930 - 2005)
- Urbina, Sylvia de Neymet (1938 - 2003)
- Urena, Manuel Valdivia (1928 - 2014)
- Ursell, Fritz (1923 - 2012)
- Urysohn, Pavel (1898 - 1924)