János Murányi (born January 13, 1944 in Mezőkövesd, Borsod-Abaúj-Zemplén) is a retired male discus thrower from Hungary. He represented his native country at the 1972 Summer Olympics in Munich, where he ended up in 12th place in the overall-rankings. Murányi is best known for winning the gold medal in the men's discus event at the 1970 Summer Universiade in Torino, Italy.