Kazan Metro (Russian: Каза́нское метро́; Tatar Cyrillic: Казан метросы, Latin: Qazan metrosı) is a rapid-transit system that serves the city of Kazan, Republic of Tatarstan, Russia. Opened on August 27, 2005, it is the newest system in Russia, and the first one to open after the breakup of the Soviet Union.

Kazan is a historic and cultural centre on the middle Volga. The first plans to have a rapid-transit system were proposed back in the days of the Russian Empire, but after the October Revolution and the Russian Civil War little was left for the design. Nevertheless, in the 1930s, Kazan, being the capital of the Tatar ASSR—one of the most visible autonomous republics and rapidly growing as an industrial centre—prompted some to propose a rapid transit system for the future, particularly after the successful construction of Moscow Metro in 1935.

However, World War II ended such attempts, and in the post-war USSR only the largest capitals of Union republics could afford a Metro system. Nevertheless, in 1979 the Kazan city's population passed the one million mark: a Soviet requirement for a Metro to be allowed. 1983 was the year when the Supreme Soviet of the Tatar ASSR authorised planning a metro system. The original design was to prove the final, as the City of Kazan effectively followed a typical Soviet model with a historical centre on the inflow of the Kazanka River into the Volga, and the various industrial and "bedroom" districts (housing complexes) on the edges. The first line would follow a north-south axis beginning in the Transit Railway Station in the north, passing through the post-war Stalinist buildings and then down south of the Kazanka, next to the Kazan Kremlin and through the historical centre to the microdistrict of Gorki.

Kazan (Russian: Каза́нь; IPA: [kɐˈzanʲ]; Tatar Cyrillic: Казан, Latin: Qazan) is the capital and largest city of the Republic of Tatarstan, Russia. With a population of 1,161,308, it is the eighth most populous city in Russia, while the metropolitan area has a population of 1.57 million (2011).^{[citation needed]} Kazan lies at the confluence of the Volga and Kazanka Rivers in European Russia.

The Kazan Kremlin is a World Heritage Site. In 2005, the Medal "In Commemoration of the 1000th Anniversary of Kazan" was established by Russia to denote this landmark event. The multi-ethnic city is is honored by UNESCO and famous for Muslims and Christians living side-by-side in peace.

In April 2009, the Russian Patent Office granted Kazan the right to brand itself as the "Third Capital" of Russia. In 2009 it was chosen as the "Sports capital of Russia" and it still is referred to as such. The city will host 2013 Summer Universiade, 2015 World Aquatics Championships, and 2018 FIFA World Cup.

The origin of the name Kazan is uncertain. The most accepted legends derive it from the Bulgar Turkic (and also modern Tatar) word qazan, which means 'boiler' or 'cauldron'.

Paola Milagros Espinosa Sánchez (born July 31, 1986 in Mexico DF, Mexico City) is an athlete from Mexico. She competes in diving and represented Mexico at the 2004 Summer Olympics in Athens and again at the 2008 Summer Olympics in Beijing, being her national team's flagbearer in the latter. She won a bronze medal in the 10m Synchronized Platform with her partner Tatiana Ortiz.

Espinosa won the gold medal in the 10 m platform at the 2009 World Aquatics Championships in Rome, and the gold medal at the 10m platform at the 2011 Pan American Games in Guadalajara.

Yahel Ernesto Castillo Huerta (born June 6, 1987 in Guadalajara, Jalisco) is a Mexican diver.

Rommel Pacheco (born July 12, 1986 in Mérida, Yucatán) is a Mexican diver. He was the gold medalist in the 10-meter platform at the 2003 Pan American Games. In the 2004 Summer Olympics he finished in 10th place in the 10-meter platform and 3-meter springboard. In the 2008 Summer Olympics he finished in 8th place in the 10-meter platform.