Travel influencer marketing is increasingly important as one of the segments of marketing, and as such has an increasingly strong influence on the behavior of consumers in tourism, which includes making purchase decisions related to the tourist destination, accommodation, selection of restaurants, tourist attractions, and tourist content. As travel influencer marketing is in its infancy, its impact on tourism has been insufficiently researched. This graduation thesis, through an empirical research part, tries to confirm the impact of travel influencer marketing on the behavior of tourists. The goal is to prove the impact of travel influencer marketing among consumers in tourism. The research objectives of this paper were examined using a designed survey questionnaire which collects data, and whose precise processing outlines the attitudes and opinions of consumers in tourism. By defining four hypothesis, this thesis demonstrate the strenght of the influence of travel influencer marketing on the behavior of consumers in tourism. Thus, this graduate thesis provides a scientific contribution to the application of travel influencer marketing and the results and conclusions can be implemented in the marketing activities of tourist destinations and entities in tourism.