Spanish colonial governments in the Americas were administrative structures established by Spain to control its vast territories across North, Central, and South America from the 16th to the early 19th centuries. These governments were characterized by a centralized authority that enforced Spanish law and customs, often leading to a blend of indigenous and European cultures. The systems in place facilitated the extraction of resources, conversion of native populations to Christianity, and the establishment of trade networks that significantly contributed to Spain's maritime empire.