- Source of Wealth: Media
- Age: 66
- Birth Place: Rio de Janeiro, Brazil
- Marital Status: Married (Gisela Marinho)
- Full Name: João Roberto Marinho
- Nationality: Brazil
- Date of Birth: September 16, 1953
- Ethnicity: Italian, Portuguese
- Occupation: Chairman of the Editorial Board and Vice President of Globo Organizations
- Children: 3
João Roberto began his career as a journalist for O Globo, a Brazilian newspaper that is the most prominent print publication of the media conglomerate. He also serves as the Managing Director of the Roberto Marinho Foundation. He is also a member of the Board of Governance of the Instituto Millenium. He is also an amateur equestrian.