Alexander Nikolaevich Tchayka (Russian:Александр Николаевич Чайка, born 23 July 1974) is a Ukrainian spree killer, also known as The Fur Coat Hunter, convicted of the killing of 4 women in Moscow over a two-week period in early 1994.

In 1989, 14-year-old Tchayka was arrested and convicted for participating in the gang-rape of a young girl, receiving a 5-year sentence at a prison near Kharkiv, but was released early on parole on July 16, 1993, for "excellent behavior".

Unlike the previous murders, police analysts found evidence about the killer's identity, however they could not determine a particular person.

After the fourth murder, the police launched an operation in Moscow to catch the spree killer.

Female police officers wearing fur coats wandered around Moscow attempting to attract the attention of the killer so they could then arrest him, however there was no success.