Guayaramerín is a city within the Bolivian Beni Department. It is the capital of the Guayaramerín Municipality in the Vaca Díez Province. Guayaramerín is located on the west side of the Mamoré River, facing the Brazilian city of Guajará-Mirim. It is a port in which there is a permanent port of the Bolivian Navy. Guayaramerín Airport is south of the city, and served by Ecojet.

Beni, sometimes El Beni, is a northeastern department of Bolivia, in the lowlands region of the country. It is the second-largest department in the country, covering 213,564 square kilometers, and it was created by supreme decree on November 18, 1842, during the administration of General José Ballivián. Its capital is Trinidad.