Jaime Oncins is a former tennis player from Brazil.  Jaime represented his native country at the 1992 Summer Olympics in Barcelona, where he reached the quarterfinals losing to Andrei Cherkasov. Jaime has also competed in the French Open, the US Open has competed for the Davis Cup representing Brazil.

Today, Jaime teaches tennis at the Montverde Academy in Orlando Florida. He was recently introduced to pickleball by his son Eric and started playing competitively in December of 2016. Simone Jardim has been instrumental in teaching Jaime some of the intricacies of the sport and they have competed together in Florida tournaments.