Alfonso María Dastis Quecedo (born 5 October 1955) is a Spanish diplomat, who served as Minister of Foreign Affairs of Spain from 2016 until 1 June 2018, when a vote of no-confidence against Mariano Rajoy ousted the government.

Among other things, he was in charge of organising Spain's presidency of the Council of the European Union, which ran in the first half of 2002.

[2] At the end of 2001, Aznar nominated him as Spanish delegate to the Convention on the Future of Europe, alongside Ana de Palacio y del Valle-Lersundi.

In this capacity, he pushed against making the Union's common foreign and security policy (CFSP) subject to the jurisdiction of the ECJ.

During the 2017-18 Spanish constitutional crisis, Dastis claimed in an interview with BBC News that several videos purporting to show clashes during the 1 October Catalan independence referendum were fake, and defended the actions of the Civil Guard and National Police.