The Ministry of Foreign Affairs and Worship (Ministerio de Relaciones Exteriores y Culto, MREC) is the ministry in charge of the foreign policy of Costa Rica, including the management of diplomatic missions around the world and their personnel.

[1] Its lead title holder is called the Chancellor (Canciller) of the country, a position currently held since 8 May 2022 by Arnoldo André Tinoco.

In 1920 the ministry moves to the current location, the Yellow House (Casa Amarilla), a building donated by Andrew Carnegie.

3008 of 18 July 1962, the function of the Ministry is to collaborate with the President of the Republic, under the direction of the Minister appointed for this purpose, in the systematized formulation of the country's foreign policy, in the orientation of its international relations and in the safeguarding of national sovereignty.

It is the means by which the Republic of Costa Rica carries out all its negotiations with foreign governments and institutions.