Jader Fontenelle Barbalho (born 27 October 1944) is a Brazilian politician, businessman and landowner from the state of Pará.
He is currently a member of the PMDB party and a Senator for Pará.
He is the father of Hélder Barbalho, mayor of Ananindeua, Pará, and the former husband of Federal Deputy Elcione Barbalho.
Barbalho is a national figure, known throughout Brazil, albeit a controversial one.
There have been raised numerous allegations of corruption and mismanagement of public funds against Barbalho, who owns newspaper Diário do Pará and is part owner of a local TV station (TV Tapajós) of the leading Globo Television network.
Starting a political career in Belém with humble possessions, Barbalho became a millionaire after decades in public office.
He has held the offices of Federal Deputy over four terms, State Governor twice, Senator thrice and Minister twice.
In 2000, Barbalho was the President of the PMDB party and Senator when a wave of corruption allegations against him took national headlines, involving embezzlement of public funds at the Superintendência de Desenvolvimento da Amazônia (SUDAM - Superintendence for Amazon's Development) development agency and the Instituto Nacional de Colonização e Reforma Agrária (INCRA - National Institute for Colonization and Agrarian Reform).
Barbalho was forced to resign the office, later briefly arrested, and the SUDAM was closed.
However, he was subsequently elected Federal Deputy in 2002 and 2006 and Senator in 2010.