president of Uruguay in 1972–76.

Bordaberry was born into a wealthy ranching family and attended law school at the University of the Republic in Montevideo before assuming management of the family ranch after his father's death. He entered political life during the upheaval that resulted from the blow to Uruguay's economy when world prices of beef and wool declined in the 1950s. In the elections of 1958 the economic crisis led to the ouster of the liberal Colorado Party and brought to power the conservative National (Blanco) Party, with which Bordaberry was affiliated. He served on several agricultural boards (1959–62) and in the Senate from 1962 to 1965. In 1964 he headed the Federal League for Rural Action, representing landowners who successfully campaigned to replace the ruling nine-man executive council with a presidential system. In 1969 Bordaberry switched to the Colorado Party and was named Minister of Agriculture and Livestock by President Jorge Pacheco Areco.

Bordaberry's 1972 election to the presidency was followed by an army-conducted recount and accusations of fraud. Six weeks after his inauguration, Bordaberry suspended the constitution and individual liberties, allowing the military free rein in stamping out the guerrilla forces (Tupamaros) that were terrorizing the country. By 1973 the president had become a virtual puppet of the military, passing actual control to a seven-man National Security Council. Under severe pressure from the armed forces, Bordaberry abolished the Congress, banned all political parties, and acquiesced in press censorship and political repression. Economic conditions continued to worsen, and Bordaberry was ousted by the military on June 12, 1976, after which he returned to the ranching business.