Slovenian priests have an important role in Croatian history; their influence can primarily be observed in the border areas of todayʼs Slovenian and Croatian border. If we look at the history of Liburnia, and, on a broader scale, of Kvarner and Croatian Istria, it can be observed that they were present in these areas for centuries, and that their work was mainly based on improving the spiritual and material life of their congregation and parishes in which they worked. The aim of this paper is to record individuals originating from Slovenian areas who worked in Croatian areas, and to present their work in the parishes of the coastal area of Liburnia. So far only some aspects of the topic have been observed, and there are no articles that present a large number of individuals that worked in the observed geographical area. This paper is based on the available scientific and professional literature, as well as on the secondary printed sources.