Slavutych (Ukrainian: Славутич, IPA: [slɐˈwutɪtʃ] ^ⓘ) is a city and municipality in northern Ukraine, purpose-built for the evacuated personnel of the Chernobyl Nuclear Power Plant after the 1986 disaster that occurred near the city of Pripyat. Geographically located within Chernihiv Raion, Chernihiv Oblast, Slavutych is administratively subordinated to the Kyiv Oblast and is part of Vyshhorod Raion. It is coterminous with Slavutych urban hromada, one of the hromadas of Ukraine. In 2021 the city had a population of 24,464 (2022 estimate). In 2024, about 20,000 people lived in Slavutych.

Slavutych is situated on the left bank of the Dnieper River, 40 kilometers (25 miles) from Chernihiv, 45 kilometers (30 miles) from the city of Pripyat, 50 kilometers (30 miles) from Chernobyl (both in Vyshhorod Raion) and 200 kilometers (100 miles) from Kyiv. While being geographically located in Chernihiv Raion (part of Chernihiv Oblast, until 2020 in Ripky Raion), administratively it belongs to Kyiv Oblast. It is an administrative exclave, that prior to 2020 did not belong to any raion. Prior to 2020 administrative reform the city was classified as a city of oblast significance. In 2020 Slavutych was downgraded to a city of district significance and made part of Vyshhorod Raion.

Slavutych was named after the Old Slavic name for the Dnieper River. The city was built in 1986 shortly after the Chernobyl nuclear disaster, to provide homes for those who had worked at the Chernobyl nuclear power plant and their families. They were evacuated from the abandoned city of Pripyat. The economic and social situation of the city is still heavily influenced by the power plant and other Chernobyl zone installations. Many of the residents still work in the energy industry in the region.

In an interview with Pravda published on 10 October 1986, Erik Pozdyshev, the newly appointed Director of the Chernobyl nuclear power plant, officially announced that a new city was to be built. Construction of the town started shortly thereafter, and the first inhabitants settled in October 1988. The city was intended to replace Pripyat which became a ghost town after it was evacuated thirty-six hours after the nuclear disaster due to radioactive material. There is a memorial in Slavutych to remember the victims of the disaster, especially to those who lost their lives immediately after the event from radiation-related diseases.

The city is mostly home to survivors of the disaster who had to be relocated from the evacuation zone around the reactor, among them about 8,000 people who were children when the disaster occurred. Many inhabitants still work at the site of the former plant for monitoring, maintenance or scientific purposes. They commute to the zone on a regular basis. A rail line (twice crossing the international border with Belarus) runs directly from the city to the site of the plant.

Slavutych is located about 50 kilometers (30 miles) east of the former plant. The site had to be a reasonable distance away from the Chernobyl zone to ensure the risk of radiation-related illnesses was reduced. However, other factors that contributed to the choosing of the site were the availability of a nearby ready railroad infrastructure, and an accessible water supply from the nearby Dnieper River. To build the city, the ground was covered with a two-meter (6') layer of uncontaminated soil.

It is also the last city to be built by the USSR.

Until 18 July 2020, Slavutych was incorporated as a city of oblast significance. In July 2020, as part of the administrative reform of Ukraine, which reduced the number of raions of Kyiv Oblast to seven, the city of Slavutych was merged into Vyshhorod Raion.