Linguoculturology is a scientific discipline that studies connection between the culture of a particular national group and their mentality through language. Based on this science, linguocultural research was carried out by an associative method with the aim of determining the linguistic image of the ethnonyms contained within the phrases set out in the questionnaire. By determining the respondents' answers, they gain insight into the structure of their mental lexicon about a particular ethnonym where associative fields are formed, divided by their frequency. The sample of 115 respondents from different parts of the Republic of Croatia mostly resulted in common associative fields, while a smaller number consisted of individual associations. The terms and collocations contained in the study reveal the associative fields formed around the following entity groups: Scots, Turks, Aborigines, Roma, Vlachs, Herzegovinians, Montenegrins, Chinese, English, Eskimos, Greeks, Russians, Serbs, Croats and Indians. Stereotypical ideas in the linguistic picture of the respondents about particular ethnonyms were not absent