Denis Aleksandrovich Ulanov (born 28 October 1993)[1] is a Kazakh Olympic weightlifter.

In the Men's 85 kg Weightlifting competition at the 2016 Summer Olympics in Rio de Janeiro, Brazil winning the bronze medal.

He initially finished fourth behind Gabriel Sîncrăian of Romania, who was later on October 13, 2016, the IWF reported that bronze medalist Gabriel Sîncrăian had tested positive for excess testosterone in a test connected to the Rio Olympics.

[2] Denis participated in the men's 85 kg class at 2016 Asian Weightlifting Championships in Tashkent, Uzbekistan.

In September of 2013 Ulanov won the Asian Junior Cup in Pyongyang,[3] after the competition he had produce positive doping test.