Isaac Nascimento de Souza Filho (born 23 June 1999) is a Brazilian diver.

[1][2] Isaac started in gymnastics, but ended up choosing to stay in diving.

[3] He won a silver medal at the 2018 South American Games held in Cochabamba.

[4] At the 2019 Pan American Games, he won a bronze medal in the Men's synchronized 10 metre platform.

[6] At the 2022 World Aquatics Championships he finished 9th in the Men's synchronized 10 metre platform.