José de la Cruz Porfirio Díaz Mori, known as Porfirio Díaz, was a Mexican general, politician, and later dictator who served seven terms as President of Mexico, a total of 35 years, from 28 November 1876 to 6 December 1876, 17 February 1877 to 1 December 1880, and 1 December 1884 to 25 May 1911. The entire period from 1876 to 1911 is often referred to as the Porfiriato, and has been characterized as a de facto dictatorship.

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 current president is Andrés Manuel López Obrador, who took office on 1 December 2018.