The Roman Catholic Diocese of Tocantinópolis () is a diocese located in the city of Tocantinópolis in the ecclesiastical province of Palmas in Brazil.

History 20 December 1954: Established as Territorial Prelature of Tocantinópolis from the Diocese of Porto Nacional 30 October 1980: Promoted as Diocese of Tocantinópolis 31 January 2023: Lost territories to establish the Diocese of Araguaína

Bishops Prelates of Tocantinópolis (Roman Rite) Cornélio Chizzini, F.D.P. † (12 April 1962 - 30 October 1980) became bishop of the diocese Bishops of Tocantinópolis (Roman rite) Cornélio Chizzini, F.D.P. (30 October 1980 - 12 August 1981) Died Aloísio Hilário de Pinho, F.D.P. (9 November 1981 - 22 December 1999) Appointed, Bishop of Jataí Miguel Ângelo Freitas Ribeiro (17 January 2001 - 31 October 2007) Appointed, Bishop of Oliveira Giovane Pereira de Melo (4 March 2009 – present)

Other priest of this diocese who became bishop Wellington de Queiroz Vieira, appointed Prelate of Cristalândia, Goias in 2017

References GCatholic.org Catholic Hierarchy Diocese website (Portuguese)