Johao is a name of Spanish origin, derived from the Hebrew 'Yohanan', which means 'God is gracious'. It is often considered a variant spelling of Juan or Jonathan. In Portugal, Johao is also a popular name, associated with notable historical figures such as João I, the King of Portugal who founded the House of Aviz in the 14th century.
"Johao saw an increase in popularity between 2001 and 2007, with six babies named Johao born in 2007 compared to just five in 2001, making a total of eleven over the seven-year span."