Antonina Grigorivna Dvoryanets (Ukrainian: Антоніна Григорівна Дворянець; née Nechiporenko; 23 March 1952 – 18 February 2014) was a Ukrainian hydraulic engineer and political activist. She began her career as an hydraulic engineer at a collective farm in Hornostaipil from 1972 to 1983 and then worked as a senior project group engineer at the Chernobyl Department of Drainage Systems between 1983 and 1987. Dvoryanets worked as a liquidator, clearing the consequences of the Chernobyl disaster at the Chernobyl Nuclear Power Plant in 1986. She later worked variously at the Land Reclamation and Water Management, Kyiv, then at the Chornobilvodeksploatsiya in Kyiv and the Chernobyl Special Plant until her retirement in 2014. As an activist, Dvoryanets took part in the Ukraine without Kuchma mass p