Ernesto Sanz (born 9 December 1956) is a former Argentine politician of the Radical Civic Union and one of the founders of Cambiemos.

[1] Sanz ran for Vice-Governor with Roberto Iglesias in 2007; the ticket, however, was defeated by Justicialist Party candidate Celso Jaque, and finished in fourth place with 10% of the vote.

[2] Sanz suffered an automobile accident in March 2008 while driving along the Atuel River in Mendoza; he recovered quickly.

The UCR organized the Broad Front UNEN political coalition, but it stayed behind in the opinion polls for the 2015 elections.

It was rumored that Sanz would be the minister of Justice in Macri's cabinet, but he retired from politics for personal reasons.