Eduardo Alfredo Juan Bernardo Frei Ruiz–Tagle is a Chilean politician and civil engineer who served as president of Chile from 1994 to 2000. He was also a Senator, fulfilling the role of President of the Senate from 2006 to 2008. He attempted a comeback as the candidate of the ruling Concertación coalition for the 2009 presidential election, but was narrowly defeated. His father was Eduardo Frei Montalva, president of Chile from 1964 to 1970.

The President of Chile, officially known as the President of the Republic of Chile, is the head of state and head of government of the Republic of Chile. The president is responsible for both government administration and state administration. Although its role and significance have changed over time, and its position and relations with other actors in the national political organization have also evolved, it remains one of the most prominent political offices in the country. It is also considered one of the key institutions that form the "Historic Constitution of Chile," and is crucial to the country's political stability.