José Santiago Vidaurri Valdez (July 24, 1809 – 1867) was a controversial and powerful governor of the Mexican states of Nuevo León and Coahuila between 1855 and 1864.
He was an advocate of states' rights.
In 1861, he sought an association with the Confederate States of America, which benefited his region economically.
Earlier in 1855, he had been a supporter of the Revolution of Ayutla, which brought liberals to power.
Vidaurri supported Benito Juarez in the War of the Reform.
He later broke with Juarez and supported Emperor Maximilian I of Mexico.
When the French regime fell in 1867, Vidaurri was captured and executed for his alliance with the French.
In Nuevo León he remains an important historical figure.