Vitalii (Russian: Вита́лий, pronounced[vʲɪˈtalʲɪj]; Ukrainian: Віта́лій, pronounced[wiˈtɑl⁽ʲ⁾ij]ⓘ) is a masculine given name of Ancient Roman origin. In ancient Rome, the name Vitalis was a nickname. There was also a related cognomen (generic nickname) Vitalianus, which literally translates as "belonging to Vitalis". The female version of the name is Vitalina (Russian: Витали́на, pronounced[vʲɪtɐˈlʲinə]; Ukrainian: Віталі́на, pronounced[witɐˈl⁽ʲ⁾inɐ]ⓘ).
The name Vіtalіi came to the Kievan Rus' with the arrival of Christianity from Byzantium. According to V. A. Nikonov, in 1988 the name in the USSR was rare.
Catholic Church: January 9, February 14, April 2, April 21, April 28, 16 May (UGCC), July 2, July 10, August 29, September 1, September 22, October 16, October 20, November 3, November 4.
Orthodox Church: January 11, January 25, April 22, April 28,