Meaning and name origin
Joao \joao\ as a boy's name is of Hebrew origin, and the meaning of Joao is "God is gracious". Joao is a variant of John (Hebrew); biblical: the name of the longest-lived of the 12 apostles, who was especially loved by Christ.
Joao is not a popular first name for males and an equally uncommon surname or last name for all people (2000 U.S. Census).
Displayed below is a comparison of the popularity of the boy name Joao and its source form. The only popular variation form ranked in the Top 1000/100 is John (#26). (2014 statistics).