Jun Mizutani (Japanese: ?? ?; born 9 June 1989) is a male Japanese table tennis player.
He became the youngest Japanese national champion at the age of 17.
His consecutive singles titles at the national championships from 2007 to 2011 made him the first man to win the event five times in a row.After defeating Vladimir Samsonov for the bronze medal by 4-1 in the 2016 Rio Olympics, he finally seized his first singles medal in the three main international tournaments.
It was also the first Olympic table tennis singles medal of his country.