Ubaldo Duany (born 16 May 1960) is a retired Cuban athlete who specialised in the long jump.
He won a bronze medal at the 1983 Summer Universiade.
In addition, he represented his country at the 1989 World Indoor Championships and the Americas at two consecutive World Cups.
Later he became an athletics coach coaching, among others, the Colombian triple jump World and Olympic champion, Catherine Ibargüen.