The goal of this research was to compile a list of wetland habitats on the islands with associated data on their characteristics (e.g., location, surface, origin, water dynamics, etc.) in accordance with the protocol of the MedIsWet project. In the spring and summer of 2020, research was conducted on 151 locations of wet habitats larger than 0.10 ha on 31 islands along the Adriatic. Based on the collected data, an overview of the frequency of certain categories of collected characteristics of wetland habitats was made, and their status was analysed regarding their current state of conservation and ways of use in order to gain insight into their threat. According to their location, 70 wetlands are categorized as marine/coastal, and 81 as terrestrial. The most wet habitats are found on the islands of the Northern part of the Adriatic: 28 on Cres, 27 on Pag and 23 on Krk. Islands located further south in the Adriatic generally have fewer wet habitats. Wet habitats on the island of Pag make as much as 37.75% of the total area of wetlands in this study. According to the categories of wetlands of the Ramsar Convention, 60 wetlands belong to terrestrial, 73 to marine/coastal and 18 to artificial wetlands. Permanently present water was recorded in 94, seasonal in 50, and occasional in 7 wet habitats. Considering the small share of wetlands covered by national protection categories (14.6%), in order to preserve the wetlands that are covered by the Natura 2000 network, which is significantly more (86.1%), it is necessary to comply with the Habitats Directive, which entails the creation of area management plans and their implementation.