Ariadne Oliveira is a Brazilian jiu jitsu black belt promoted by her father Manoel João Costa, owner of the Iron Jiu Jitsu Academy. Ariadne earned the recognition of the grappling community as a brown belt, particularly during the 2014 Abu Dhabi World Pro Championship where she shocked the world by submitting multiple time black belt world champion Michelle Nicolini. Oliveira has since become one of the top competitors in the female jiu jitsu division.