Horlivka (UK: /ˈhɔːrl.juːkə/ HORL-yoo-kə, US: /ˈhɔːrlɪfkə/ HOR-lif-kə; Ukrainian: Горлівка, IPA: [ˈɦorlʲiu̯kɐ] ), also known as Gorlovka (Russian: Горловка, IPA: [ˈɡorləfkə]), is a city in Donetsk Oblast of Ukraine. Its population is 239,828 (2022 estimate).

Economic activity is predominantly coal mining and the chemical industry. The Horlivka Institute for Foreign Languages has a two-building campus in the city centre.

The city was severely damaged during the Battle of Horlivka in 2014 as part of the war in Donbas. Since 2014, it has been mainly under Russian occupation.

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In April 1918, troops loyal to the Ukrainian People's Republic took control of Horlivka. Subsequently, under Soviet control, by the 1930s it had expanded considerably and become a major center for mining operations in the Ukrainian SSR.

The city was occupied by German troops from 1941 to 1943. During World War II retreating Nazis burned buildings and perpetrated mass shootings. Nonetheless, the city's population had risen to over 400,000 by the end of the war. In recent years many mines have closed.

In the middle of April 2014, and shortly thereafter, pro-Russian separatists captured several towns in Donetsk Oblast. A group of separatists seized the police station in Horlivka on 14 April; the city hall was seized on 30 April. The mayor of the city, Yevhen Klep, was detained by the separatists on 11 June and not released until 18 July. Local chief of police Andriy Kryschenko was captured and badly beaten by the insurgents. A Horlivka city council deputy, Volodymyr Rybak, was kidnapped by the pro-Russian militants on 17 April. His body was later found in a river on 22 April. The city administration building was seized on 30 April, solidifying separatist control over Horlivka. Self-proclaimed mayor of Horlivka Volodymyr Kolosniuk was arrested by the SBU on suspicion of participation in "terrorist activities" on 2 July.

On 21 and 22 July 2014, the city saw heavy fighting. The Ukrainian army reportedly retook parts of Horlivka on 21 July. After the Ukrainian army had retaken Lysychansk on 25 July 2014, the recapture of Horlivka became a priority, for the city was seen as "a direct path to the regional center – Donetsk". As of 28 July, the city was reported to be fully surrounded by Ukrainian troops, with rebels holding their positions inside. However, Horlivka continued to be controlled by separatist forces. As of June 2015, it was situated ten kilometers from the war front. Suburbs of Horlivka stayed under Ukrainian army control. In November 2017 they regained control of the villages of Travneve and Hladosove north of Horlivka.

As reported by the city administration, from the beginning of the conflict until late January 2015, 274 local civilians were wounded and 92 killed, including nine children. Because of the conflict the city's population shrank to 180,000.

In late March 2019, according to Ukrainian media reports, Ukrainian army mine clearance specialist Andriy Shor, who participated in both battles for the Donetsk Airport and the Battle of Pisky, announced on Facebook that the Ukrainian army had recently entered Horlivka city. Unian reported that Ukrainian forces had secured the outskirts of the city and were slowly advancing further towards the center of Horlivka, citing Ukrainian volunteer Yuriy Mysiahin. In May the separatists tried to push the Ukrainian forces back, but failed.

As of 2020, the city remained under separatist control. In June 2020, the former head of DPR propaganda in Horlivka handed himself to SBU.

In July 2020, as part of the reform of administrative divisions in Ukraine, Horlivka was made the administrative center of Horlivka Raion. This new status is not recognized by the pro-Russian occupation authorities.

On 15 September 2022, the Intelligence Directorate under the Ukrainian Ministry of Defence reported that the occupying Russian forces were tasked with conscripting an additional 6,000 local residents. This, combined with previous conscription campaigns, and residents fleeing the city, left Horlivka near devoid of a male population of military age.

Ethnic composition as of the Ukrainian Census of 2001:

Ethnicity	Number	%
Ukrainians	160,397	51.4
Russians	139,980	44.8
Belarusians	4,079	1.3
Tatars	876	0.3
Armenians	784	0.3
Moldovans	720	0.2
Azeris	647	0.2

First language as of the Ukrainian Census of 2001:

• Russian 85.1%
• Ukrainian 13.9%
• Belarusian 0.1%
• Armenian 0.1%

The Museum of the City History, the Art Museum (the largest collection of paintings by N. Roerich in Ukraine), the Miniature Book Museum by V.A. Razumov (the only state in the world). 62 out of 84 comprehensive schools (29,700 students, 7,000 teachers), 55 kindergartens (5,700 children), 19 out of 25 houses of culture and clubs, 7 parks, 29 libraries, 7 cinemas.

Despite the fall of communism a statue of Lenin still stands in a central square bearing his name. Horlivka is well served by CNG-buses (see Natural gas vehicle), but much of the city's Soviet-era infrastructure shows signs of deterioration. By contrast, a number of modern shops and a new cathedral (completed 2014) in the town center indicate some rejuvenation.

On the eastern side of Horlivka there is an abandoned chemical plant which used to produce toxic explosives and has been reported to be in a dangerous condition. Mining activity has resulted in large spoil tips being visible around the city, but a tree planting project and ongoing forestry maintenance has revitalised an area to the north.

The city was severely damaged during the war in Donbas.

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The city is divided into three urban districts: Mykytivskyi, Kalininskyi, and Tsentralno-Miskyi.

The city municipality also includes several towns and villages. Most of the populated places belong to the Tsentralno-Miskyi District, while Hladosove, Holmivskyi and Zaitseve are part of Mykytivskyi District.

• rural settlements: Holmivskyi, Zaitseve, Panteleimonivka
• villages: Mykhailivka, Riasne, Hladosove, Ozerianivka, Piatykhatky, Stavky, Fedorivka, Shyroka Balka

• Sergei Baranov, Russian volleyball player
• Yuriy Boyko, Ukrainian politician
• Valeriy Horbunov, Ukrainian and Soviet football player
• Jinjer, Ukrainian metal band
• Nikolai Kapustin, Russian composer and pianist
• Alevtin Osipov, former Kazakh professional football player
• Ihor Petrov, Ukrainian professional football coach and a former player
• Aleksandr Ponomarev, Soviet Ukrainian football player and manager
• Ruslan Ponomariov, Ukrainian chess player
• Serhii Rebrov, Ukrainian football manager and former footballer
• Oleksandr Savanchuk, Ukrainian football striker
• Arkady Shevchenko, Soviet defector
• Mykyta Shevchenko, Ukrainian football goalkeeper
• Evgeny Ukhanov, Ukrainian-Australian pianist
• Alexander Volkov, Soviet-Ukrainian-Russian cosmonaut
• Volodymyr Ivanovych Rybak, Ukrainian police officer and deputy, killed by Russian-backed militants

Horlivka is twinned with:

• Barnsley, United Kingdom, since 1987
• Pensacola, United States
• Buffalo, United States, since 2007

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  Lenin monument in Horlivka
• 
  Stirol chemical plant in Horlivka
• 
  Mykytivka railway station
• 
  A billboard in Horlivka
• 
  Zheleznaya Balka (Iron Valley) near Horlivka

• Gorlovka Portal
• Gorlovka Vedi
• Video of Gorlovka
• Yellow Pages of Horlivka
• Things to do in Horlivka Archived 23 February 2016 at the Wayback Machine