Social Democratic Party (Mexico, 1980)

Social Democratic Party
AbbreviationPSD
FounderManuel Moreno Sánchez
FoundedLate 1970s
Registered14 December 1980 (1980-12-14)
Dissolved1982
HeadquartersMexico City
IdeologySocial democracy
Liberalism
Secularism
Revolutionary nationalism
New left
Political positionCentre-left to left-wing

The Social Democratic Party (Spanish: Partido Social Demócrata, PSD) was a political party in Mexico during the late 1970s to 1982 with a moderate leftist tendency. It was founded by Manuel Moreno Sánchez, a former member of the Institutional Revolutionary Party (PRI).

Advocating revolutionary nationalism and a new left stance and founded thanks to political reforms implemented by José López Portillo y Pacheco, the party was registered on 14 December 1980. It eventually participated in the 1982 elections, in which it nominated Moreno as its presidential candidate. He received 48,412 votes (0.21%): less than the 2% of the vote required to retain party registration, with which the party was dissolved and disappeared.