- Uberto De Morpurgo1924Italian tennis player
- Ugo (Hugo) Schiff1834Chemist known for Schiff bases and Schiff's test
- Ugo Fano1912Physicist
- Ugo VolliItalian semiotician and cultural critic.
- Ulric Neisser1928Founder of cognitive psychology as a formal discipline
- Umberto De Morpurgo1896Italian tennis player
- Umberto SabaPoet / lyricist
- Uri Adelman1958Israeli author of popular mystery and thriller novels.
- Uri Geller1970Israeli illusionist and performer known for spoon-bending acts.
- Uri Levine2006Waze Co-founder
- Uri Orlev1931Israeli children's author and Holocaust survivor.
- Uri Zohar1935Pioneering Israeli filmmaker and comedian whose Metzitzim is a landmark of Israeli cinema.
- Uriah P. Levy1834First Jewish Commodore of the US Navy
- Urie Bronfenbrenner1917Developmental psychologist who created ecological systems theory
- Uriel da Costa1624Portuguese philosopher whose critique of received religious authority, and the…
- Uriel Feige2001Israeli theorist of approximation hardness and probabilistically checkable proofs
- Uriel Frisch1940Physicist known for contributions to the theory of turbulence
- Uriel Weinreich1926Linguist, author of 'Languages in Contact' and scholar of Yiddish and sociolinguistics.
- Ursula Franklin1967Metallurgist and physicist whose study of strontium-90 in children's teeth helped end…
- Ursula Kuczynski (Ruth Werner)1907Operating under at least five different names in the course of her career, Ruth Werner (a…
- Ursula PhilipUrsula Philip was a German geneticist whose work was interrupted by the Nazis’ rise to…
- Uzi Even1940Israeli chemist (Tel Aviv University)
- Uzi VishkinComputer & information scientist
- Uziel Gal1950German-born Israeli firearms designer who developed the Uzi submachine gun