In the paper's introduction, basic information about the Ruthenians in the Republic of Croatia is provided, i.e. statistical data, Ruthenians origin, information about their language, culture, immigration and position in the socio-demographic sphere of the Republic of Croatia and the former state of Yugoslavia. The main focus of the paper is on the Ruthenians bilingualism, previous research done on the subject of bilingualism and the importance of authors whose work described, explained and defined bilingualism. There is a reference to code-switching, which is especially important for bilingual speakers and to the types of bilingualism that exist. This is followed by short references to higher metalinguistic awareness among bilinguals and positive attitudes of bilinguals towards foreign languages mentioned in some earlier papers and which gave impetus to the author of this final paper for her research in this thesis. The main part of the paper is based around the research conducted in the Republic of Croatia in 2023, which is based on a sample of one hundred respondents (N=100). The author wanted to test the hypotheses about whether bilingualism helped the respondents in their decision to learn a foreign language and what their attitudes toward foreign languages are. The research was done by a self made questionnaire which consisted of 30 questions and referred to seven domains of language use. It is concluded that the initial hypotheses are true, i.e. bilingual speakers believe that their bilingualism helped them in learning foreign languages and that they have a positive attitudes were foreign languages, in this case English, Russian and German.