Deniz Khazaniuk (Hebrew: דניז חזניוק; born 24 October 1994) is an Israeli former tennis player.

[2] Her father German Hazniuk is an orthopedist at the Hillel Yaffe Medical Center, and her mother Larissa who imports tennis equipment, both immigrated to Israel from Ukraine.

[2][3] When she was four years old the family moved to Netanya, Israel, where she lives.

[2][3] Her younger sister Stefany Khazaniuk is a former tennis player who currently works as a pitch-side reporter for Israel's Sport 5 Channel, and she has been in a relationship with Yair Netanyahu, son of the noted current Prime Minister of Israel.

In December 2016, Khazaniuk won the Israeli Singles Championship at 22 years of age, defeating Maya Tahan in the final.