Ricardo Mário de Souza (born 21 September 1994) is a Brazilian track and field sprinter who competes in the 100 metres. He represented the host nation at the 2016 Rio Olympics. He holds a personal best of 10.21 seconds for the 100 m. At the 2016 Summer Olympics he led off a team including Vitor Hugo dos Santos, Bruno de Barros, and Jorge Vides that placed sixth in the final.