Roberto Pisani Marinho (December 3, 1904 - August 6, 2003) was a Brazilian businessman and tycoon who was the founder and owner of media conglomerate Grupo Globo from 1925 to 2003, and during this period expanded the company from newspapers to radio and television.

Born and raised in Rio de Janeiro, Marinho inherited the newspaper O Globo and began working there as a reporter. Later he became the chief editor. Marinho founded and