Umutoni is not a popular first name.
First names and their meaning - Page 5542
Uthai
Meaning: My iniquity. 
Uthai is not a popular first name. It is more often used as a boy (male) name. 
Vahagn
Meaning: Smiting of resistance. 
Vahagn (or Vahakn) (Armenian: Վահագն) is a common Armenian male given name, referring to ancient Armenian god of war and […] 
Vaman
Meaning: Lord Vishnu. 
Vaman is not a popular first name. It is more often used as a boy (male) name. 
Varoon
Varoon is not a popular first name.
Verito
Verito is not a popular first name.
Vessela
Vessela is not a popular first name. It is more often used as a girl (female) name.
Vima
Vima is not a popular first name.
Volt
Volt is not a popular first name.
Vyshak
Vyshak is not a popular first name.