Esther Adelina Cuesta Santana (born 23 June 1975) is an Ecuadorian politician and a member of the National Assembly and The Citizens' Revolution.

[2] She put herself forward as a candidate for the National Assembly and she was elected in February 2017 to represent the 800,000 Ecuadorian migrants in Europe, Asia, and Oceania.

42 other members also made the same request including Wilma Andrade, Mónica Alemán, Verónica Arias, Dallyana Passailaigue, Cristina Reyes and Silvia Lorena Vera.

[6] In July 2022 the position of vice-president of the assembly was vacant as Yeseña Guamaní had been removed by the Union for Hope (UNES) faction and a replacement was required.

[7] The President of Ecuador Guillermo Lasso brought in the constitution clause number 148 known as Mutual death in May 2023 when he knew that he was about to be impeached.

In April 2024 she caused controversy when she published a video in supported of Jorge Glas who was a former colleague who was then avoiding arrest inside the Mexican embassy.