The master thesis examines the phenomenon of lustration laws in Ukraine as a legal measure of transitional justice. It maps the history of unsuccessful attempts to adopt lustration laws from the independence in 1991 until the Euromaidan revolution in winter 2014. It then analyses the two lustration laws adopted in 2014 and their implementation between years 2014 and 2017. Finally it analyses the legal review that the laws have faced or are likely to face in the future. It comes to a conclusion that Ukrainian laws were not adopted after the independence in 1991 because of structural reasons and after the Orange Revolution in 2004 due to a lack of political will. In the second part, the thesis concludes that Ukrainian lustration laws adopted after Euromaidan were some of the most extensive ones in the region of post-communist Europe. Nevertheless, their implementation fell short of meeting most of their goals. In the third part, the thesis concludes that the laws might be spared constitutional review, but they are likely to face a negative scrutiny before the European Court of Human Rights.