Kosak

Kosak is a surname.

People

 * Artsyom Kosak (born 1977), Belarusian footballer and coach
 * Carl Constantine Kosak (born 1934), American author
 * Jan Kosak (born 1992), Czech footballer
 * Karin Kosak (born 1979), Austrian dressage rider
 * Vladimir Košak (1908–1947), Croatian economist and politician