Yerevan (Armenian: Երևան or Երեւան, Armenian pronunciation: [jɛɾɛˈvɑn]) is the capital and largest city of Armenia and one of the world's oldest continuously-inhabited cities. Situated along the Hrazdan River, Yerevan is the administrative, cultural, and industrial center of the country. It has been the capital since 1918, the thirteenth in the history of Armenia.

The history of Yerevan dates back to the 8th century B.C., with the founding of the fortress of Erebuni in 782 BC by king Argishti I at the western extreme of the Ararat plain. After World War I, Yerevan became the capital of the Democratic Republic of Armenia as thousands of survivors of the Armenian Genocide settled in the area. The city expanded rapidly during the 20th century as Armenia became one of the fifteen republics in the Soviet Union. In fifty years, Yerevan was transformed from a town of a few thousand residents within the Russian Empire, to Armenia's principal cultural, artistic, and industrial center, as well as becoming the seat of national government.

With the growth of the economy of the country, Yerevan has been undergoing major transformation as many parts of the city have been the recipient of new construction since the early 2000s. Today, the appearance of new buildings, roads, restaurants, boutiques, living quarters, etc., have started to give the city a modern, cosmopolitan appearance.

In 2009, the population of Yerevan was estimated to be 1,111,300 people with the agglomeration around the city regrouping 1,245,700 people (2007 official estimate), more than a third of all the population of Armenia.

Yerevan is named as the 2012 World Book Capital by the UNESCO.