Roberto Irineu Marinho is a Brazilian businessman, the billionaire Co-owner and Former Executive of Grupo Globo, the largest mass media conglomerate in Latin America (controlling TV Globo, Globo News, and Globo.com). His colossal wealth is generational, tied to the media empire founded by his late father, Roberto Marinho (d. 2003), in 1925.

Marinho's philosophical approach centers on generational stewardship, media ownership, and long-term commitment to content creation and distribution (dominating the television and digital media landscape). His structural contribution is immense: shaping Brazilian media, culture, and national discourse for over half a century.

• Grupo Globo (Co-owner & Former Executive): The core private asset, a massive conglomerate spanning television broadcasting (TV Globo), publishing, and digital media (the largest media group in Latin America).
• Media Apex: His success is built on scale content production and dominating the domestic and regional market for television news and entertainment.
• Family Governance: He and his two brothers (João Roberto Marinho and José Roberto Marinho) control the massive private empire.
• Investment Strategy: His philosophy is rooted in long-term investment in media IP and technology infrastructure.

Roberto Irineu Marinho's strategic leadership involved managing the immense Grupo Globo empire. He assumed the Executive role after his father's death, successfully guiding the company's commitment to technological modernization (especially the digital pivot). His structural contribution is immense: providing foundational media and information services that shape Brazilian political and cultural life.

He stepped down from executive roles (remaining a major shareholder) in 2017, transitioning leadership to the next generation of family members. His wealth is secured by the colossal, long-term, stable profitability of the global media and entertainment sector.

Roberto Irineu Marinho's social impact is structural, stemming from Grupo Globo's role in providing essential news, media, and entertainment content that shapes Brazilian culture and political discourse. His Roberto Marinho Foundation supports education and culture (focusing on journalism and vocational training). His structural contribution is tied to the successful generational transition and stable private control of a critical national media asset.

His personal philanthropy supports various community and educational initiatives.

Roberto Irineu Marinho maintains the professional, composed style of a corporate executive. His attire is consistently formal and high-quality, favoring tailored suits. His aesthetic reflects serious authority and stability, typical of a leader in the global media sector.

Residing in Rio de Janeiro, Brazil, his luxury is the immense security and financial reward derived from his multi-billion dollar fortune. His life is dedicated to corporate governance, strategic management, and philanthropy.