| Untti | A nickname for the name Untamo. |
| Uokke | A variant of the name Uolevi. |
| Uole | A short form of the name Uolevi. |
| Uolev | A variant of the name Uolevi. |
| Uolevi | Heir; Descendant |
| Uolo | A rare variant of the name Uolevi. |
| Uolu | A rare variant of the name Uolevi. |
| Uoti | A Finnish form of the name Walter. |
| Upe | A short form of the name Urho. |
| Upi | A diminutive form of the name Urho. |
| Upo | A name derived from Finnish roots. |
| Urbaanus | Meaning a person from the city. |
| Urbanus | From the City; Urban; Modern |
| Urho | Brave, Courageous |
| Urkka | A variant of the Finnish name Urho. |
| Urkki | A nickname for the name Urho. |
| Urmas | Meaning eternal or everlasting life. |
| Urmo | A name meaning eternal or lasting. |
| Urski | A diminutive form of the name Ursula. |
| Ursus | A Latin name meaning a male bear. |
| Uskali | A Finnish name meaning bold. |
| Uski | A name meaning a small stream. |
| Usko | A Finnish name meaning belief. |
| Usvalli | A name meaning misty meadow. |
| Utamo | A name meaning deep forest. |
| Uto | A name meaning island dweller. |
| Utu | A name meaning sun or sunlight. |
| Uula | Gallant or Valiant |
| Uulas | A name meaning noble spirit. |
| Uulevi | A name meaning wise leader. |
| Uulo | A name meaning bright light. |
| Uuloffi | A name meaning noble wolf spirit. |
| Uune | A name meaning a new beginning. |
| Uuno | A name meaning the very first one. |
| Uunu | A name meaning a gentle soul. |
| Vaalu | A name meaning a bright light. |
| Vaape | A name meaning a swift breeze. |
| Vaapi | A name meaning a calm water flow. |
| Vaappi | A name meaning a small treasure. |
| Vaeino | Slow Flowing River |