Pryluky (Ukrainian:Прилуки) is a city located on the Udai River in the Chernihiv Oblast, north-central Ukraine. Serving as the administrative center of the Pryluky Raion (district), the city itself is also designated as a separate municipality within the oblast. Located nearby is the Pryluky air base, a major strategic bomber base during the Cold War, which is Ukraine's largest airfield. The population of Pryluky was estimated at 64,900 in 2001.