Galina Nikolayevna Prozumenshchikova (Russian: Галина Николаевна Прозуменщикова, Ukrainian: Галина Миколаївна Прозуменщикова); 26 November 1948 – 19 July 2015) was a Soviet breaststroke swimmer. She was bornn in Sevastopol, Russian SFSR.
She won five Olympic medals in 1964, 1968 and 1972 and five European Championships medals in 1966 and 1970. Her first Olympic medal, the gold in 200 m breaststroke in 1964, was the first Olympic gold in swimming for the Soviet Union. In 1964–1966 she set five world records: four in 200 m and one in 100 m breaststroke events. Between 1963 and 1972 she won 15 national titles and set 27 national records.
She died of an illness in Moscow.