Vitali Klitschko is a Ukrainian boxer and politician. He is the former WBO world champion in the heavyweight. Since April 2010 Klitschko is the leader of the oppositional anti-Viktor Yanukovych party Ukrainian Democratic Alliance for Reform (UDAR; Russian for "strike"). He supported the Orange Revolution in Ukraine. Klitschko was elected as mayor of Kiev in 2014.
Klitschko is an Orthodox Christian.