The tragic years of World War II, followed by the unfriendly communist policy in Poland towards the Jewish community, changed the country from a multicultural into the most homogeneous state in the European Union nowadays. At the same time, Israel, as a meeting place for various cultures, enjoys the influence of inhabitants from nearly all over the world. The dissimilar experiences and problems faced by the governing bodies should influence different approaches to dual citizenship in Poland and Israel. In view of the above, in the presented work the author would like to analyze the issue of the legal approach to dual citizenship both in Poland and in Israel. The main goal of the paper, beyond comparison of the effectiveness of the legislation, is finding the answer to the question: what is the state’s attitude towards the issue of the dual citizenship of their citizens? The hypothesis that the article will verify states, that due to the small number of people with dual citizenship in Poland, Polish legislation devoted to this topic is not extensive and has dissimilarities to the law in Israel, which, in contrast, is more complex and better response to the needs of society. The reason for comparing Poland and Israel is the fact that Polish citizenship has been very popular among the citizens of the Jewish state, especially since 2004 when Poland became a member of the European Union. This issue, in the long run, may be one of the key determinants of Polish-Israeli and Polish-Jewish relations.