Francisco Clementino San Tiago Dantas (August 30, 1911 – September 6, 1964) was a journalist, lawyer, teacher and congressman, as well as Minister of Foreign Affairs during the presidency of João Goulart.

He is considered one of the forerunners of the "Independent Foreign Policy", which sought to diversify Brazil's international relations and refused automatic alignments with any country or bloc.

The basic concept was that, whilst respecting the international norms of good practice, Brazil should retain the right to negotiate with all countries, in accordance with its own conventions.

In 1943, San Tiago Dantas represented Brazil at the first Conference of Ministers of Education in the American Republics, in Panama.

As head of the newspaper Jornal do Comércio from 1957 to 1958, he devoted his editorials - known as the "Várias" - to matters of foreign policy and in 1959 he assisted in the drafting and debating of the Santiago do Chile Declaration, one of the most important documents of the Inter-American System.