Olena Ivanivna Ronzhyna-Morozova (Ukrainian: Олена Іванівна Ронжина-Морозова; born 18 November 1970 in Dnipropetrovsk) is a retired rower from Ukraine, who won a silver medal at the 1996 Summer Olympics.

She was a member of the Ukrainian team at the 1996 Summer Olympics in Atlanta, winning a silver medal in the women's quadruple sculls with teammates Inna Frolova, Svitlana Maziy, and Dina Miftakhutdynova.

At her last Olympic appearance in 2004, she was disqualified with her team after one of her teammates, Olena Olefirenko, tested positive for ethamivan.

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