- A former Spanish viceroyalty established in Central and North America in 1535, centred on present-day Mexico City. It comprised all the land under Spanish control north of the Isthmus of Panama, including parts of the southern US. It also came to include the Spanish possessions in the Caribbean and the Philippines. The viceroyalty was abolished in 1821, when Mexico achieved independence.
More definitions of New SpainDefinition of New Spain in:
- The US English dictionary