The analysis of the development of agriculture in Istria and Vukovar-Srijem Counties in terms of the marketing of agricultural products through tourism indicates the key factors, challenges and opportunities that these two regions have in this context. Both counties have exceptional agricultural potential, but face different circumstances and challenges. The County of Istria, with an abundance of fertile soil, a favorable climate and a rich tradition of agriculture, already has a developed tourist offer based on gastronomy and wine tourism. On the other hand, the Vukovar-Srijem County, although it also has fertile soil, faces the consequences of the war past and the lack of infrastructure necessary for the development of agriculture-based tourism. The analysis identified several key factors that influence the marketing of agricultural products through tourism in both counties. These include a lack of promotion and infrastructure, insufficient coordination between farmers and tourism actors, and challenges related to the sustainable use of land and resources. Despite the challenges, there are significant opportunities for improving the marketing of agricultural products through tourism in both counties. This includes the development of agrotourism, the promotion of a gastronomic offer based on local products, the strengthening of cooperation between farmers and tourism actors, and investment in the restoration of rural areas and tourist infrastructure. Through an integrated approach, the cooperation of all relevant stakeholders and smart planning and investment, the counties of Istria and Vukovar-Srijem can use their agricultural potential to diversify the tourist offer, improve the local economy and promote their culture, traditions and natural beauty on a national and international level.