Chudniv (Ukrainian:Чуднів, Yiddish:טשודנאוו) is a city in Zhytomyr Oblast, Ukraine. It is the administrative center of the Chudniv Raion. Population: 5,794(2013 est.)
A significant battle of the Russo-Polish War (1654-1667) was fought near the town in 1660, followed by a treaty between the Polish-Lithuanian Commonwealth and the Cossacks, named after the city.