Coordinates: 40°10′22″N 44°17′33″E / 40.17278°N 44.2925°E / 40.17278; 44.2925

Vagharshapat (Armenian: Վաղարշապատ), commonly known as Ejmiatsin in Eastern Armenian and Echmiadzin in Western Armenian (Armenian: Էջմիածին), is the fourth-largest city in Armenia and the spiritual centre of the Armenians, as it is the seat of the Catholicos of All Armenians, the head of the Holy Armenian Apostolic Church. It is the most populous city in Armavir province, located about 18 km west of Yerevan, 25 km east of the regional centre of Armavir, only 10 km north of the Armenia-Turkish border. The 1989 census counted the population of Ejmiatsin as 61,000; it has declined somewhat since: 58,388 in the 2001 census, and an estimated 56,757 in 2008.

Vagharshapat (Ejmiatsin) is the biggest satellite city of Yerevan and the 4th largest in Armenia, close to Zvartnots International Airport. It is located in Eastern Armenia to the center-west of the country in the north-eastern extremity of Ararat Valley, in Kasagh River basin. Historically, Vagharshapat is situated at the heart of the Armenian Highland, in Aragatsotn canton (Armenian: Արագածոտն գաւառ Aragatsotn gavar, not to be confused with the current Aragatsotn Province) of Ayrarat province, within Armenia Major. The city has an average elevation of 853 meters above sea level with a dry continental climate.

The 27th century of the anno Domini (common) era will span from January 1, 2601–December 31, 2700 of the Gregorian calendar.