| Uba | African | wealthy |
| Ubul | Hungarian | |
| Udeh | Hebrew | praise |
| Udell | Anglosaxon | From the valley of the Yew trees. |
| Udit | Hindu | |
| Udo | German | Prosperity, fortune. |
| Udolf | Old English | A prosperous wolf. |
| Uehudah | Hebrew | |
| Ufuk | Turkish | |
| Ugo | Italian | Italian form of Hugh. Heart and mind. |
| Ugod | Hungarian | name of a clan |
| Ugor | Hungarian | Hungarian |
| Ugur | Turkish | |
| Uilleam | Scottish Gaelic | Scottish Gaelic form of William. A strong and resolute protector. |
| Uisdean | Scottish | |
| Uland | Teutonic | The noble land. |
| Ulbrecht | Teutonic | Noble splendour. |
| Ulf | Swedish | Wolf-like, courageous. |
| Ulffr | Scandinavian | |
| Ulfred | Old English/Teutonic | Peace. |
| Ulmer | Old English | A famous wolf. |
| Ulprus | Latin | |
| Ulrich | Teutonic | A ruler. |
| Ultan | Irish | From an old Gaelic name. |
| Ulucan | Turkish | |
| Ulysses | Greek | The angry one, wrathful. The famous wanderer of Homer's odyssey. |
| Umar | Arabic | Flourishing, long-lived. |
| Umberto | Italian | A famous warrior. |
| Unai | Basque | |
| Unni | Norse | modest |
| Unwin | Old English | The enemy. |
| Upen | Hindu | |
| Upendra | Hindu | an element |
| Upor | Hungarian | |
| Upravda | Slavonic | The upright one. |
| Upton | Old English | From the upper farm or town. |
| Upwood | Old English | From the forest on the hill. |
| Urban | Latin | A city dweller. The name of several early saints and popes. |
| Uren | Welsh | |
| Uri | Russian | God is light. Also see Uriel. |
| Uriah | Russian | God is light. A biblical name that is best known from the Charles Dickens character Uriah Heep in David Copperfield. Also see Uriel. |
| Urie | Russian | God is light. Also see Uriel. |
| Uriel | Hebrew | Light. Also see Uriah. |
| Urien | Welsh | Have privileged birth, or born in the town. |
| Urjavaha | Hindu | of the Nimi dynasty |
| Uros | Hungarian | little lord |
| Ursel | Latin | A bear. The masculine version of Ursula. |
| Urson | Old French from Latin | A little bear. |
| Urvan | Latin | A city dweller. |
| Usamah | Arabic | |
| Ushnisha | Sanskrit | A crown. |
| Usko | Finnish | Faith. |
| Usman | Arabic | An Ottoman Turk, or a servant of God. |
| Utah | The name of an American State. A boy or girl's name. | |
| Utt | Arabic | wise and kind |
| Uttam | Hindu | 3rd Manu |
| Uttanka | Hindu | |
| Utz | Teutonic | A ruler. |
| Uwain | Welsh | |
| Uwan | Aboriginal | To meet. |
| Uwe | Scandinavian | A well-known Scandinavian name. |
| Uxio | Galician | |
| Uyeda | Japanese | From the Rice field. |
| Uzi | Hebrew | My strength. |
| Uzor | Hungarian | name of an ethnic group |
| Uzziah | Hebrew | The power or strength of God. |