Mihály Hesz (born 15 December 1943) is a Hungarian sprint canoeist who competed from the early 1960s to the early 1970s. Competing in two Summer Olympics, he won two medals in the K-1 1000 m event with a gold in 1968 and a silver in 1964.
Hesz also won six medals at the ICF Canoe Sprint World Championships with two golds (K-1 10000 m: 1966, K-1 4 x 500 m: 1971), a silver (K-1 4 x 500 m: 1966), and three bronzes (K-1 500 m: 1971, K-1 10000 m: 1963, K-1 4 x 500 m: 1970).
He married and later divorced Andrea Gyarmati, who won two medals in women's swimming at the 1972 Summer Olympics in Munich.