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 is presently Ukraine's largest airfield. The current population of Pryluky is estimated at 64,900 (as of 2001[update]).