Roberto Irineu Marinho (born October 13, 1947) is a Brazilian billionaire businessman.

Roberto Irineu Marinho was born in Rio de Janeiro, RJ,[1] the eldest son of three of the late tycoon Roberto Marinho.

[2] Following the death of Roberto Marinho in August 2003 aged 98, his three sons inherited the control of Grupo Globo, Latin America's largest media group.

[2] According to Forbes, Marinho has an estimated net worth of $3.8 billion as of March 2017.

[2] Marinho is a Roman Catholic, married with four children, and lives in Rio de Janeiro.