Dublin is the capital and largest city in Ireland. It is in the province of Leinster on the east coast of Ireland, at the mouth of the River Liffey and bordered on the south by the Wicklow Mountains. The area population of Dublin is 1,173,179. The population of the Dublin Region, in 2016, was 1,347,359 and the population of the Greater Dublin area was 1,904,806.

There is archaeological debate regarding precisely where Dublin was established by Celtic-speaking people in the 7^th century AD. Later it was expanded as a Viking settlement which is the Kingdom of Dublin became Ireland's principal city following the Norman invasion. From the 17^th century the city expanded rapidly and was become the second largest city in the British Empire before the Acts of Union in 1800. During the partition of Ireland in 1922, Dublin became the capital of the Irish Free State, later renamed Ireland.

In 2010, Dublin was listed by the Globalization and World Cities Research Network (GaWC) as a global city, with a ranking of "Alpha-", where it is placed at the top thirty cities in the world. It is an ancient and contemporary centre for education, the arts, administration, economy and industry.