Mexicans (Spanish: mexicanos) are the citizens and nationals of the United Mexican States, colloquially referred to as Mexico.

The most spoken language by Mexicans is Spanish, but some may also speak languages from 68 different Indigenous linguistic groups and other languages brought to Mexico by recent immigration or learned by Mexican expats residing in other countries. In 2015, 21.5% of Mexico's population self-identified as being Indigenous. There are about 12 million Mexican nationals residing outside Mexico, with about 11.7 million living in the United States. The larger Mexican diaspora can also include individuals that trace ancestry to Mexico and self-identify as Mexican yet are not necessarily Mexican by citizenship, culture or language. The United States has the largest Mexican population after Mexico in the world at 37,186,361 (2019).

The modern nation of Mexico achieved independence from the Spanish Empire in 1821, after a decade long war for independence starting in 1810; this began the process of forging a national identity that fused the cultural traits of Indigenous pre-Columbian origin with those of Spanish ancestry. This led to what has been termed "a peculiar form of multi-ethnic nationalism".