Opinions and Views of the Population of Ukraine: September-October 2025 (KIIS Omnibus 2025/10) – Data from a nationwide public opinion poll conducted by KIIS

"Opinions and Views of the Population of Ukraine" is a regular omnibus survey, conducted by Kyiv International Institute of Sociology (KIIS) among Ukraine's adult population and covering a wide range of topics. The data presented here is a subset of the survey conducted in September-October 2025 and includes KIIS's own research questions. Topics covered by the survey include: • Readiness for territorial concessions for peace; • Trust in Volodymyr Zelenskyy; • Expectations for Zelenskyy and Poroshenko's post-war roles; • Perceptions of anti-corruption efforts in Ukraine; • Attitudes toward criticism of the government; • Perceptions of the policies of the Europe and the United States toward Ukraine in the context of the ongoing Russia-Ukraine war; • Perceptions of Ukraine's future in 10 years; • Perceptions of Ukrainian society's unity; • Attitudes toward selected groups of Ukrainian citizens (refugees, internally displaced persons, residents of occupied territories, groups defined by language and ethnicity); • Inter-ethnic prejudice; • Historical memory: attitudes toward OUN–UPA. Data collection took place from 19 September to 5 October 2025. The full sample included 2,015 respondents, divided into subsamples for individual questions. The data is available in an SAV format (Ukrainian, English) and a converted CSV format (with a codebook). The Data Documentation includes a short overview and discussion of survey results (with frequency tables in Annex 1) as well as the relevant parts of the original questionnaire in Ukrainian (Annex 2).