'Manganese', Ukrainian: Марганець, Russian: Марганец, romanized: Marganets) is a city in Nikopol Raion, Dnipropetrovsk Oblast, Ukraine.

The city used to be located on the right bank of the Kakhovka Reservoir before the Reservoir’s destruction during the Russian invasion of Ukraine on the Dnieper River where the river meets one of its tributaries, the Tomakivka.

It is considered that next to the modern city was located the Cossack Fort "Tomakivka Sich" in the 16th century that was destroyed by Tatars soon after the Kosiński Uprising.

During World War II, Marhanets was under German occupation from 17 August 1941 until 5 February 1944.

The municipality was abolished in July 2020 as part of the administrative reform of Ukraine, which reduced the number of raions of Dnipropetrovsk Oblast to seven.