Gregorio Di Leo (born July 12, 1983, in Palermo, Italy) is an entrepreneur, psychologist and professional Italian Kickboxing World Champion in Points Fighting.

[3] From 2011 to 2017, he has served in various roles including, director of the faculty at ISTUD Foundation and Senior HR Consultant at Randstad.

From 1995 to 2011, he has competed in W.A.K.O (World Association of Kick Boxing Organizations) at the -69 kg weight division under the Semi-contact discipline: Gregorio Di Leo has been one of the few European athletes capable of winning a team competition in the United States, together with Roberto Bellotti (Amerikick International, Atlantic City, 2005), and he is the only European athlete that has been able to win a race in Central America (Guatemala City, Great Maya Challenge, 2006).

During his career, he has run several seminars in Kickboxing throughout Italy, Bulgaria, South Korea, the United States, and Norway.

In the same year, he took part in the inaugural SportAccord 2010 World Combat Games held in Beijing and won gold in the -74 kg category of Semi-contact Kickboxing.