Konye-Urgench (Turkmen: Köneürgenç, کؤنه‌‌اۆرگنچ; Persian: کهنه گرگانج, romanized: Kuhna Gurgānj, lit. 'Old Gurgānj'), also known as Old Urgench or Urganj, was a city in north Turkmenistan, just south from its border with Uzbekistan. It is the site of the ancient town of Gurgānj, which contains the ruins of the capital of Khwarazm. Its inhabitants deserted the town in the early eighteenth century in order to develop a new settlement, and Konye-Urgench has remained undisturbed ever since. In 2005, the ruins of Old Urgench were inscribed on the UNESCO List of World Heritage Sites.

Located on the south side of the Amu Darya River, Old Ürgenç was situated on one of the most important medieval paths: the Silk Road, the crossroad of western and eastern civilisations. It is one of the most important archaeological sites in Turkmenistan, situated within a vast protected landscape zone and featuring a large number of well-preserved monuments dating from the 11th to the 16th centuries. They comprise mosques, the gates of a caravanserai, fortresses, mausoleums and a minaret, and the influence of their architectural style and craftsmanship reached Iran, Afghanistan and the later architecture of the Mughal Empire of 16th-century India.

Atanyyazow explains, "In the works of Chinese historians, the name Yue-Gyan, which occurs in Georgian forms in the works of Arab scholars of the 10th century,...was used in the form of Gurganj, a native of Khorezm....and -j, according to Yakut, mean[s] just like the word... abat, i.e., "village" and "city"...Given the ancient name of the word Gurgen..., then the toponym of Gurganj...has the meaning of "Gurgen city", "Gurgen city of the people". Later, the name Gurganj began to be used in the form of Urgench." To what Gurgen or Gurgan refer, however, remains unexplained.

The exact dates when Kunya-Urgench was founded remain uncertain, but archaeological finds at the Kyrkmolla Hill (one of the main fortresses at the site) reveal that the town already had a strong structure in the 5th and 4th centuries BC. Some of the earliest records show that Khwarezm was conquered by the Arabs in 712, who took the capital city of Kath of the Iranic Khwarazmian Afrighid dynasty. The city rose to prominence between the 10th and 14th centuries as the Khwarezmian capital, replacing Kath. Gurjanu served as an important trading center, competing in fame and population with many other Central Asian cities, such as Bukhara. It had become highly prosperous due to its strategic location on the main trade routes from the south to the north, and the west to the east, vastly contributing to the development of science and culture in Central Asia.

According to an 1893 writer Djordjania or Jorjania was the "second capital" of the country. It was on the Wadak canal which seems to be the east end of the Kunya-Darya which seems to be the river bed that now leads to the Sarykamysh Lake. Just east of the town was the Gurganj Dam that irrigated the area and blocked the flow of the Oxus into the Caspian Sea. In 1221 both town and dam were destroyed by the Mongols and the surrounding area became a marsh. Konya-Urgench was soon built on or near the site of Jorjania.

In 1221, Genghis Khan destroyed the city in the Mongol invasion of Central Asia, in what is considered to be one of the bloodiest massacres in human history. Most if not all the ancient Iranic Khwarazmian people were killed or pushed out, paving the way for the Turkification of Khwarazm. Despite the devastating effects of the invasion, the city was revived and it regained its previous status. It was described by the 14th-century Berber traveller Ibn Battuta as "the largest, greatest, most beautiful and most important city of the Turks. It has fine bazaars and broad streets, a great number of buildings and abundance of commodities".

In 1373, Timur attacked Khwarezm, and its ruler Yusef Sufi of the Sufi Dynasty surrendered to Timur. In 1379, Yusef Sufi rebelled against Timur, who sacked Urgench, and Yusef Sufi was killed. In 1388, the Sufi dynasty of Urgench again revolted against Timur; this time Timur razed Urgench to the ground and massacred its population, destroyed the city's irrigation system, and had barley planted over the ground where the city had once stood, leaving only one mosque standing. This, coupled with the sudden change of the Amu-Darya River's course, constituted the beginning of Kunya-Urgench's decline until the 16th century, when it was replaced as a regional capital by Khiva and was ultimately abandoned.

The area was later inhabited by the Turkmen people from the early 19th century, but they mostly developed outside the old town, utilising the latter as a graveyard. However, this use has now stopped, and efforts have been made to remove the decaying grave stones that can be encountered at the site.