Serhiy Haidai

In this name that follows East Slavic naming customs, the patronymic is Volodymyrovych and the family name is Haidai.

Not to be confused with Serhiy Hayduk.

Serhiy Volodymyrovych Haidai (Ukrainian: Сергій Володимирович Гайдай; born 6 November 1975) is a Ukrainian entrepreneur and politician.^[1] He was the head of the Luhansk Regional Military–Civil Administration from 25 October 2019 to 15 March 2023.^[2][3] Since March 15, 2024, Haidai is the head of the State Administration of the Mukachevo District in Zakarpattia Oblast.^[4]

Serhiy Haidai
Сергій Гайдай
15th Head of the Luhansk Regional Military–Civil Administration
In office 25 October 2019 – 15 March 2023
President	Volodymyr Zelenskyy
Prime Minister	Oleksiy Honcharuk Denys Shmyhal
Preceded by	Vitaliy Komarnytskyi
Succeeded by	Oleksiy Smyrnov (acting)
Personal details
Born	(1975-11-06) 6 November 1975 (age 49) Sievierodonetsk, Ukrainian SSR, Soviet Union (now Ukraine)
Political party	Independent
Education	Khmelnytskyi University of Economics [uk] National Academy for Public Administration under the President of Ukraine
Occupation	Entrepreneur, politician

Biography

Haidai studied at the Khmelnytskyi University of Economics ^[uk].^[5] He also graduated from the National Academy for Public Administration under the President of Ukraine.^[6]

From 2005 to 2015, Haidai was the General Director of Dembud LLC.^[5] From 2008 to 2010, he worked as an Assistant Member of the Kyiv City Council.^[6] From 2014 to 2015, Haidai worked as an Adviser to the Chairman of the Obukhiv Raion State Administration.^[6] In 2015, he was elected a Member of the Mukachevo Raion Council.^[6] From 2015 to 2018, he served as Chairman of the Mukachevo Raion State Administration.^[7]

During the 2022 Russian invasion of Ukraine, Haidai served as head of the Luhansk Regional Civil-Military Administration.^[8]

During the 2022 Battle of Sievierodonetsk, Haidai observed that "The Russians are using their Syrian war tactic in Sievierodonetsk. First, they try to raze a few kilometers of area with air and artillery fire and advance with ground troops. When they gain strength, they retreat, and start shooting with long-range weapons. On the other hand, when they start hitting with cannons, we retreat and then return to our positions."^{[citation needed]}

The Ukrainian Cabinet of Ministers agreed to dismiss Haidai from his position on 14 March 2023, along with the governors of Odesa and Khmelnytskyi oblasts.^[9][10][11] Haidai was dismissed as Governor by Presidential decree on 15 March 2023.^[9]

In August 2025, Haidai was arrested on charges related to a corruption scandal involving inflated state contracts for drones and electronic warfare equipment from 2024 to 2025.^[12]