Tião Viana
17th Governor of Acre
In office 1 February 2011 – January 1, 2019
Preceded by	Binho Marques
Succeeded by	Gladson Cameli
Senator for Acre
In office 1 February 1999 – 21 December 2010
Preceded by	Flaviano Melo
Succeeded by	Aníbal Diniz
President of the Federal Senate Acting
In office 15 October 2007 – 11 December 2007
Preceded by	Renan Calheiros
Succeeded by	Garibaldi Alves Filho
Personal details
Born	(1961-02-09) 9 February 1961 (age 63) Rio Branco, AC, Brazil
Political party	PT (1994–present)
Spouse	Marlucia Cândido
Alma mater	University of Brasília (UnB) Federal University of Triângulo Mineiro (UFTM)
Occupation	Physician, Politician

Sebastião Afonso Viana Macedo Neves, better known as Tião Viana (Rio Branco, February 9, 1961), is a doctor and Brazilian politician. He was formerly Governor of Acre and is a member of the Workers' Party. He served as interim President of the Senate in 2007.^[1]

• (in Portuguese) Home page of Tião Viana

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