Gennady Ivanovich Ivanchenko (Russian: Геннадий Иванович Иванченко, born 30 July 1947) is a retired Soviet light-heavyweight weightlifter.

Between 1969 and 1972 he set eight ratified world records.

His 1972 record in the press was never surpassed, as that event was discontinued the same year.

[3] Ivanchenko was left out of the 1972 Olympic team due to a fever.

He retired in 1979 to become a weightlifting coach.