Manuel de Bernardo Álvarez del Casal (May 21, 1743 in Bogotá – September 10, 1816 in Bogotá) was an influential Criollo figure in New Granada at the time of the independence movement. He occupied several important positions in the rebel government. He was also the uncle of Antonio Nariño, forerunner of independence. He served as president of the rebel State of Cundinamarca in 1814.