Oleksii Reznikov was born on June 18, 1966 in Lviv, Ukraine . In 1991 he graduated Franko Lviv State University majoring in Law, recieving a degree with honors. On November 4, 2021 Oleksii Reznikov was appointed Minister of Defense of Ukraine.

Previously, he served as a member of the Reformation Team for the Decentralization, Local Government and Regional Policy of the Ministry of Regional Development, Construction, and Communal Services of Ukraine and advisor to the Kyiv City Mayor.

From April 2016 to September 2018, he was the Deputy Head of the Kyiv City State Administration on the exercise of self-governing powers: exercising the powers of the Kyiv City State Administration on the implementation of state policy in the areas of local self-government, domestic policy, international relations, tourism, advertising, protection of cultural heritage, education, culture, social protection, youth and sports, responsible for the implementation of reforms in the areas of decentralization, local government and other areas of life of the city of Kyiv, etc.

In March 2020, Oleksii Reznikov was appointed Deputy Prime Minister, Minister for Reintegration of the Temporarily Occupied Territories of Ukraine.