Sergio Obeso Rivera (Spanish pronunciation: [ˈseɾxjo oˈβeso riˈβeɾa]; 31 October 1931 – 11 August 2019) was a Mexican prelate of the Catholic Church.

[1] His father was a native of Asturias, Spain, and his mother was from Las Vigas de Ramírez, where he was raised.

[2] He entered the seminary in Xalapa on 23 January 1944[3] and was ordained in Rome on 31 October 1954 and while earning his doctorate in theology at the Pontifical Gregorian University.

[1] Until 1971 he held various positions at the Xalapa seminary, including prefect of philosophy, spiritual director, and rector.

[6] Pope Francis made Obeso a cardinal on 28 June 2018, assigning him the titular church of San Leone I.