Oleksii (Alex) Mykhailovych Riabchyn is a Ukrainian politician, scientist, journalist. He served as deputy minister for Energy and Environmental Protection of Ukraine responsible for the energy-efficiency sector in 2019-2020.
In October 2014, he was elected to the Verkhovna Rada on the party list of Batkivshchyna In the 2019 Ukrainian parliamentary election he was not re-elected. During his parliamentary tenure, he headed the subcommittee on energy saving and energy efficiency of the Committee on Fuel and Energy Complex, Nuclear Policy and Nuclear Safety.
