Marcelo Antonio Suartz (born 24 September 1987) is a Brazilian bowler.
At the 2014 South American Games held in Toronto, Canada, he won a gold medal in bowling in singles, and a silver medal in doubles playing with Renan Zoghaib.
At the 2015 Pan American Games held in Toronto, Canada, he won a gold medal in bowling in singles. He also won silver at the 2019 Pan American Games and bronze in 2011.
At the 2022 South American Games held in Asunción, Paraguay, he won a gold medal in bowling in doubles.