Maria Nichiforov (later Mihoreanu, 9 April 1951 – 24 June 2022) was a Romanian canoe sprinter.

She won four medals at the world championships with a silver in 1974 and bronzes in 1973, 1974 and 1975.

At the 1972 Olympics she won a bronze medal in the K-2 500 m event and placed sixth in the singles.

She is a sister-in-law of the Olympic canoer Maria Ştefan-Mihoreanu.

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