Tlaxcala (Spanish: [tɬa(k)sˈkala], Nahuatl: [tɬaʃˈkalːan]), officially Free and Sovereign State of Tlaxcala (Spanish: Estado Libre y Soberano de Tlaxcala), is one of the 31 states which along with the Federal District comprise the 32 federative entities of Mexico. It is divided into 60 municipalities and its capital city is Tlaxcala.

It is located in East-Central Mexico, in the altiplano region, with the eastern portion dominated by the Sierra Madre Oriental. It is bordered by the states of Puebla to the north, east and south, México to the west and Hidalgo to the northwest. It is the smallest state of the republic, accounting for only 0.2% of the country’s territory.

The state is named after its capital, Tlaxcala, which was also the name of the pre-Hispanic city and culture. The Tlaxcalans allied themselves with the Spanish to defeat the Aztecs, with concessions from the Spanish that allowed the territory to remain mostly intact throughout 300 years of colonial period. After Mexican Independence, Tlaxcala was declared a federal territory, until 1857 when it was admitted as a state of the federation.