1999 US Open – Boys' Singles

David Nalbandian was the defending champion, but did not compete this year. Finnish player Jarkko Nieminen defeated Danish first seed Kristian Pless in the all-Scandinavian final, 6–7, 6–3, 6–4.

1999 US Open – Boys' Singles

David Nalbandian was the defending champion, but did not compete this year. Finnish player Jarkko Nieminen defeated Danish first seed Kristian Pless in the all-Scandinavian final, 6–7, 6–3, 6–4.