Jose María Montoya was a Mexican diplomat who served twice as ad interim chargé d'affaires of Mexico to the United States of America (1828–1830 and 1831–1833).
[1] During his first stint as chargé d'affaires, Montoya substituted Envoy Pablo Obregón, a former colonel in the Army of the Three Guarantees who committed suicide at the embassy in August 1828.
[2][3] From February 1830 to June 1831, he was substituted by José María Tornel, who served several times as secretary of War in the cabinet of Antonio López de Santa Anna.
[4] When Tornel returned to Mexico, Montoya was reappointed as chargé and held the post until 31 December 1833, when he was substituted by Joaquín María del Castillo y Lanzas.
[1] Montoya kept working at the embassy as trade commissioner (in Spanish: encargado de negocios), and was substituted in that post by the ephemeral Mexican emperor, Agustín de Iturbide.