The Diocese of Tehuantepec () is a Latin Church ecclesiastical territory or diocese of the Catholic Church in Mexico. It is a suffragan in the ecclesiastical province of the metropolitan Archdiocese of Antequera.Tehuantepec - Catholic Encyclopedia article It was erected in 1891 from the Dioceses of Veracruz and Antequera.
Bishops Ordinaries José Mora y del Rio (1893–1901), appointed, Bishop of Tulancingo, Hidalgo Carlos de Jesús Mejía y Laguna, C.M. (1902–1907) Ignacio Placencia y Moreira (1907–1922), appointed Archbishop (Personal Title) of Zacatecas Jenaro Méndez y del Río (1923–1933), appointed, Bishop of Huajuapan de León, Oaxaca Jesús Villareal y Fierro (1933–1959), appointed Bishop of San Andrés Tuxtla, Veracruz José de Jesús Clemens Alba Palacios (1959–1970), appointed Auxiliary Bishop of Antequera, Oaxaca Arturo Lona Reyes (1971–2000) Felipe Padilla Cardona (2000–2009), appointed Bishop of Ciudad Obregón, Sonora Óscar Armando Campos Contreras (2010–2017), appointed, Bishop of Ciudad Guzmán, Jalisco Crispin Ojeda Márquez (2018–present)
Coadjutor bishop Felipe Padilla Cardona (1996–2000)
Auxiliary bishop José Refugio Mercado Díaz (2003–2009)
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