João Victor Marcari Oliva (born 2 February 1996) is a Brazilian Olympic dressage rider.

[2] Oliva also represented Brazil at the 2014 World Equestrian Games in Normandy, France, where he finished 24th in team dressage and 85th in the individual dressage competition.

In 2015, he participated at the Pan American Games, where he won a bronze medal in team dressage.

[4] He is a son of Hortência Marcari, Olympic silver medalist in basketball from 1996.

This biographical article related to Brazilian equestrianism is a stub.