Mihai Zafiu (born 9 June 1949) is a Romanian retired canoe sprinter. He competed in the K-4 1000 m event at the 1972, 1976 and 1980 Olympics and won silver medals in 1972 and 1980, placing fourth in 1976. At the world championships he won six medals between 1970 and 1978, five of them in the K-1 4×500 m relay.[2]