This data set presents detailed biographical information on “political clones” who have participated in several Ukrainian parliamentary elections. The data set covers five election years: 1998, 2002, 2012, 2014, and 2019. It presents information on more than 300 clone candidates in xlsx format. The data set will be available in the near future, after the first journal publication based on the data is out. The goal of fielding clones is to confuse voters by presenting them with candidates whose names are identical or similar to the names of real candidates participating in the same elections. Therefore, the data set also contains information on whether the clone candidates actually deprived their targets (real candidates against whom they ran) of electoral victories or at least of securing higher places. In addition, it features information on “party clones” who massively ran in the 2019 elections; these candidates posed as representatives and employees of organizations that mimicked popular political parties.