Denys Anatoliiovych Monastyrsky[a] (Ukrainian: Денис Анатолійович Монастирський, IPA: [deˈnɪs ɐnɐˈtɔl⁽ʲ⁾ijowɪtʃ monɐsˈtɪrsʲkɪj]; 12 June 1980 – 18 January 2023) was a Ukrainian lawyer and politician who served as Minister of Internal Affairs of Ukraine from 16 July 2021 until his death in a helicopter crash on 18 January 2023.

[5] He also headed the department of lawmaking and scientific expertise of the research part of the Khmelnytskyi University of Management and Law, where he worked as an associate professor.

[10] In September 2022, Monastyrsky participated in the largest prisoner exchange operation between Ukraine and Russia, when 215 Ukrainian soldiers returned home, including more than 100 fighters and commanders of the Azov Regiment.

[11] Throughout the 2022 Russian invasion of Ukraine, Monastyrsky was among the top security officials who remained in Kyiv, the capital, with Zelenskyy in the first days of the war as Russia's army bore down on the city.

[12] Monastyrsky, along with his deputy Yevhen Yenin, and Secretary of State of the Ministry of Internal Affairs Yurii Lubkovych, were killed in a helicopter crash on 18 January 2023, in Brovary, an eastern suburb of the capital Kyiv.

Top officials, including Zelenskyy and his wife, Olena Zelenska, attended the funeral, offering condolences to the relatives of the crash victims.