The Sanok I Deanery, known as I. Decanatus Sanocensis, is one of the deaneries of the Archdiocese of Przemyśl, with a still rich history and numerous parishes. Established in 1594, the deanery underwent various transformations, including its division into the Sanok I and Sanok II deaneries in 1971. The deanery comprised many parishes that held significance not only in religious terms but also culturally and socially. Architecturally, the churches from the 17th and 18th centuries stand out, representing various styles, from Baroque to Neo-Gothic. Parishes such as Sanok, Bukowsko, and Dudyńce have preserved numerous historical elements, making them important points on the region's tourist map. From a historical perspective, the deanery contributed to the development of Christianity in the area, attracting many believers and becoming a place of activity for renowned priests, such as St. Andrew Bobola or Fr. Zygmunt Gorazdowski. Religious orders, such as the Conventual Franciscans and the Starowiejska Servants, also operated within the deanery, significantly influencing the religious life of the community. An interesting fact is that until 1956, the deanery housed seven monasteries, highlighting its important role in the practice of religious life. Today, the Sanok I Deanery remains active, maintaining strong ties with the local community and continuing traditions that date back centuries.