Gustavo Díaz Ordaz, Mexican academic and politician, 29th President of Mexico (born 1911)

Gustavo Díaz Ordaz Bolaños was a Mexican politician and member of the Institutional Revolutionary Party (PRI). He served as the President of Mexico from 1964 to 1970. Previously, he served as a member of the Chamber of Deputies for Puebla's 1st district, a senator of the Congress of the Union for Puebla, and Secretary of the Interior.

The president of Mexico, officially the president of the United Mexican States, is the head of state and head of government of Mexico. Under the Constitution of Mexico, the president heads the executive branch of the federal government and is the commander in chief of the Mexican Armed Forces. The office, which was first established by the federal Constitution of 1824, is currently held by Claudia Sheinbaum, who was sworn in on October 1, 2024. The office of the president is considered to be revolutionary, in the sense that the powers of office are derived from the Revolutionary Constitution of 1917. Another legacy of the Mexican Revolution is the Constitution's ban on re-election. Mexican presidents are limited to a single six-year term, called a sexenio. No one who has held the post, even on a caretaker basis, is allowed to run or serve again. The constitution and the office of the president closely follow the presidential system of government.

July 15 is the 196th day of the year in the Gregorian calendar; 169 days remain until the end of the year.