This thesis presents an analysis of the rhetoric of the Portuguese authoritarian leader Antonio Oliveira Salazar. This conservative university professor of finance was brought in as finance minister in the 1930s, during the crisis in Portugal. He subordinated the functioning of the entire state to his financial plan and introduced the Constitutional Dictatorship, with him as a leader, a role which he played practically until the end of his life. He balanced the appetites of the political elites and kept the public on the sidelines of state events. His speeches (3) from the beginning, middle, and end of his career were analyzed, and the goal was to get an idea of Salazar as a speaker. The analysis found that he persuades his audience using political claims supported by value claims, as well as factual claims. He uses his own ethos, that is, his credibility and knowledge, as the basis of his claims, and convinces with his own authority. Common fallacies include ad baculum, ad populum, and overlooking the alternative. His speeches are very figurative and he most often uses figures of repetition of words, which have a persuasive function.