The Parish of the Transfiguration of the Lord in Sanok is a Roman Catholic organizational unit located in the Archdiocese of Przemyśl, with its church serving as the central place of worship. The parish's history dates back to at least before 1339. The first wooden church, likely founded by King Casimir the Great, was replaced by a brick building in 1417, funded by King Władysław Jagiełło. Over the centuries, the church underwent numerous reconstructions and suffered damage, and the current building was constructed between 1874 and 1886 according to the design of architect Józef Braunseis. The consecration took place in 1897, and the temple’s beautifully decorated interior is now also used as a concert hall during the Adam Didur Festival. The parish also plays a significant educational role—a parish school existed here as early as 1380. The parish boasts a rich collection of parish groups, such as Catholic Action, the Living Rosary groups, and the Light-Life Movement. Within its territory are chapels in Płowce and Stróże Małe, as well as the Rectorate of St. Maximilian Kolbe. The parish was divided in 1969, leading to the creation of two new parishes, and it currently serves approximately 9,560 faithful. In the parish's history, the pastors hold a special place, including Fr. Antoni Porębski, who served as administrator for nearly three decades. The rectory, built in the style of the "Sanok Belvedere," is located near the church, emphasizing the clergy's closeness to the parish community. It is also worth noting that in the 19th century, properties were purchased for educational purposes, contributing to the development of childcare in the region. The Parish of the Transfiguration of the Lord is not only a religious site but also an important cultural and social center for the residents of Sanok.