Nicole Sladkov (born November 2, 1999) is an American group rhythmic gymnast who represented the United States at the 2020 Summer Olympics.

[6] Sladkov competed at the 2018 World Championships in Sofia where the American group finished fourteenth in the all-around.

[7] Then at the 2018 Pan American Championships in Lima, she won the silver medal in both the group all-around and the 3 balls + 2 ropes event final, both behind Mexico.

[8] Sladkov competed at the 2019 Pan American Games in Lima and won the silver medal in the group all-around and in the 5 balls event final, both times finishing behind Mexico.

[10] Sladkov was selected to represent the United States at the 2020 Summer Olympics alongside Isabelle Connor, Camilla Feeley, Lili Mizuno, and Elizaveta Pletneva.