Hlukhiv (Ukrainian: Глухів) or Glukhov (Russian: Глухов) is a historic town and a city of regional significance in the Sumy region of Ukraine, just south of the Russian border (see map). It is known for being an administrative center of Zaporizhian Cossack Administration after deposition of Ivan Mazepa as part of the Government of Kiev. As of 2005, the city's population is 36,100. It is near the Chervone Pustohorod air base.