Samuel Doria Medina Auza (born 4 December 1958) is a politician in Bolivia and former business person.

[2] He is the leader of the National Unity Front and represented the party alongside Carlos Fernando Dabdoub Arrien in the December 2005 Presidential Elections.

Doria Medina ran once again in the 2014 elections; coming out second with 25.1 of the vote.

He has sought to position himself and his party as a moderate third force in Bolivian politics.

[3] Medina married Nidia Monje Postigo in 1983 and has six children.