Kostyantyn Petrovych Morozov[a] (born 3 June 1944) is a Soviet-Ukrainian former military officer who served as the first Minister of Defence of Ukraine following its 1991 declaration of independence.

Kostyantyn Morozov was born in a village of Lozova Pavlivka (today part of Brianka, in Luhansk Oblast) on 3 June 1944.

His father, Petro Stepanovych Morozov, was an ethnically-Russian mine electrician, and his mother was an ethnically-Ukrainian school teacher.

Soon after the 1991 Soviet coup d'état attempt, Morozov was appointed by the Verkhovna Rada as the first Minister of Defence of independent Ukraine on 3 September 1991.

In 1994-95 he studied English, foundations of state administration and international security policy at the John F. Kennedy School of Government (Harvard University).