Saltillo is a city in northeast Mexico, located at . It is the current capital of the state of Coahuila. In 2003 Saltillo had an estimated population of 591,000 people, rising to 637,000 if the full Metropolitan Area is considered, making it the 20th biggest metro area in the country.

Saltillo's most famous exports are saltillo tile and the locally woven multi-coloured sarapes . There is also the automotive industry, with two major assembly plants (one General Motors and the other Chrysler), two engine facilities and a transmissions plant.

Saltillo is served by the Plan De Guadalupe International Airport (IATA airport code: SLW).