| En Name: | Udomlya |
| Ru Name: | Удомля |
| Coordinates: | 57.8833°N 35°W |
| Map Label Position: | right |
| Image Coa: | Coat of Arms of Udomlya (Tver oblast).png |
| Federal Subject: | Tver Oblast |
| Federal Subject Ref: | [1] |
| Adm District Jur: | Udomelsky District |
| Adm Selsoviet Jur: | Udomlya |
| Adm Selsoviet Type: | Urban settlement |
| Adm Ctr Of1: | Udomelsky District |
| Adm Ctr Of2: | Udomlya Urban Settlement |
| Inhabloc Cat: | Town |
| Mun District Jur: | Udomelsky Municipal District |
| Urban Settlement Jur: | Udomlya Urban Settlement |
| Mun Admctr Of1: | Udomelsky Municipal District |
| Mun Admctr Of2: | Udomlya Urban Settlement |
| Pop 2010Census: | 31061 |
| Established Date: | 1869 |
| Current Cat Date: | September 11, 1981 |
| Prev Name1: | Troitsa |
| Postal Codes: | 171841–171843 |
| Website: | http://gorod-udomlya.ru/ |
Udomlya (Russian: Удо́мля) is a town and the administrative center of Udomelsky District in Tver Oblast, Russia, located on the shores of Lake Pesvo on the Rybinsk–Bologoye railway, 225km (140miles) north of Tver, the administrative center of the oblast. Population:
It was founded in 1869 as a settlement serving the railway station of Troitsa (Russian: Троица).[2] At the time, it was a part of Vyshnevolotsky Uyezd of Tver Governorate. Troitsa was renamed Udomlya in 1904.
On July 12, 1929, the governorates and uyezds were abolished.[3] Udomelsky District, with the administrative center in Udomlya, was established within Tver Okrug of Moscow Oblast. On July 23, 1930, the okrugs were abolished and the districts were directly subordinated to the oblast.[4] On January 29, 1935, Udomelsky District was transferred to newly established Kalinin Oblast. In January 1961, Udomlya was granted work settlement status. In February 1963, during the abortive administrative reform by Nikita Khrushchev, Udomelsky District was merged into Bologovsky District, but in January 1965 it was re-established. Between 1974 and 1984, the Kalinin Nuclear Power Plant was constructed.[5] On September 11, 1981, Udomlya was granted town status. In 1990, Kalinin Oblast was renamed Tver Oblast.[6]
Within the framework of administrative divisions, Udomlya serves as the administrative center of Udomelsky District. As an administrative division, it is incorporated within Udomelsky District as Udomlya Urban Settlement.[7] As a municipal division, this administrative unit also has urban settlement status and is a part of Udomelsky Municipal District.[8]
The main industrial enterprise in Udomlya is the Kalinin Nuclear Power Plant (98% volume of industrial production in Udomlya District, 70% of electric power produced in Tver Oblast and 2,5 % of goods and products of Tver Oblast). There are also enterprises of timber and food industries.[9]
The railway connecting Rybinsk and Bologoye via Bezhetsk passes Udomlya.
Udomlya has access to the road which connects Maksatikha and Vyshny Volochyok. There are also local roads, with bus traffic originating from Udomlya.
Udomlya contains four objects classified as cultural and historical heritage of local significance, which are the Gudzovsky warehouse, built in 1882, a building where a Young Pioneer club was located, a monument to soldiers fallen in World War II, and a monument to Alexander Popov.
There is a local museum in Udomlya.[10] The former Dacha Chayka on the shores of Lake Udomlya, located close to the town, which belonged to artist Vitold Byalynitsky-Birulya, is also open as a museum.[11]
Russian painters Alexey Venetsianov in the 19th century and Isaac Levitan at the turn of the 20th century lived and worked in the surroundings of Udomlya.