Sivenathi Nontshinga (born 3 December 1998) is a South African professional boxer. He is the current IBF light-flyweight world champion, having held the belt since September 2022. He has previously held the IBF International light-flyweight title from 2019 to 2022. Also a former African light-flyweight champion, he is ranked as the world's sixth-best active light-flyweight by BoxRec and the seventh-best by the IBF.