Inca social mobility refers to the ability of individuals to change their social status within the hierarchical structure of the Inca Empire, which existed in South America from the early 15th century until the Spanish conquest in the 16th century. This system allowed for some movement between different classes, though it was limited compared to modern standards. Factors such as military achievements, marriage alliances, and contributions to state projects could elevate one's status, reflecting the Incas' values of meritocracy and loyalty to the state.