Uexküll, Jakob Johann von

Ukhtomsky, Alexei Alexeivich

Ulloa y de la Torre Giral, Antonio de

Ulrich of Strasbourg

Ulrich, Edward Oscar

Ulrich, Edward Oscar

Ulstad, Philipp

Ulstad, Philipp

Ulugh Beg

ʿUmar Ibn al-Farrukhān al- Ṭabarī

ʿUmar Ibn al-Farrukhān al- Ṭabarī

Umawī, Abū ʿAbdallāh YaʿĪsh Ibn Ibrāhīm Ibn Yūsuf Ibn Simāk al-Andalusī al-

Umov, Nikolai Alexeevich

Unanue, José Hipólito

Unger, Franz

Unzer, Johann August

Unzer, Johann August

Uqlīdīsī, Abu'l-Ḥasan Aḥmad Ibn Ibrāhīm al-

Urbain, Georges

Urbain, Georges

Ure, Andrew

Urey, Harold Clayton

Urey, Harold Clayton

Urey, Harold Clayton

Urey, Harold Clayton

Uryson, Pavel Samuilovich