Candidates in the 1982 Mexican presidential election

María del Rosario Ibarra de la Garza (24 February 1927 – 16 April 2022), also known by her marital name Rosario Ibarra de Piedra, was an activist and prominent figure in the politics of Mexico. She was a presidential candidate and was the serving president of Comité Eureka at the time of her death.In March 2006, the Party of the Democratic Revolution (PRD) designated Ibarra as its candidate to the Senate via proportional representation to serve during the LX (2006–2009) and LXI Legislatures (2009–2012); she won.

Arnoldo Martínez Verdugo (12 January 1925 – 24 May 2013) was a Mexican socialist politician and democracy activist. A long-standing leader of the Mexican Communist Party and the Unified Socialist Party of Mexico (PSUM), Martínez promoted political self-criticism, refused to support regional guerrilla movements, condemned the Soviet invasion of Czechoslovakia and promoted the unification of the political left.