Naldo is a devout Christian and has a large back-piece tattoo depicting Jesus on the cross with two angels on either side, one holding a guitar the other holding a heart. Over the tattoo it says in Portuguese "De Todo o Nos Livrai time Amém" ("Deliver us from evil, Amen"). The tattoo was done by Frank Kassebaum and describing it Naldo states "I am very religious, and have faith in God. It is to my family and will always protect me." In addition, Naldo has the names of his wife Carla and his son Naldinho tattooed on his forearms.