Sergio Fajardo Valderrama (Spanish pronunciation: [ˈseɾxjo faˈxaɾðo βaldeˈrama]; born 19 June 1956) is a Colombian politician and mathematician.

[1] He was the mayor of Medellín from 2003 to 2007 and is widely recognized for transforming the city from a violent and impoverished place to a model of social and urban development.

Fajardo was the vice presidential nominee of Antanas Mockus in 2010, finishing in second place after losing the runoff against Juan Manuel Santos and Angelino Garzon.

[14] Fajardo launched his independent presidential candidacy in 2018, which was supported by the Coalición Colombia, made up of the Green Party, the Polo Democrático and his movement, Compromiso Ciudadano.

[16] In 2021, Fajardo faced embezzlement charges for allowing a $98 million loan contract to be denominated in dollars during his governance of Antioquia.

[citation needed] A member of the Inter-American Dialogue, Fajardo intends to represent a Third Way inspired by former British Prime Minister Tony Blair to overcome the traditional divide on the left–right political spectrum.