The article discusses a group of Neo-Gothic churches designed by the Lviv architect Michał Kowalczuk, which were built at the turn of the nineteenth and twentieth centuries in Galicia (in the Lviv, Stanisławów, and Tarnopol regions). The group of churches examined, including those in Stojanów, Dobrotwór, Zabłotów, Sorocko, Myślatycze, and Sietesz, is distinguished by common stylistic features and a Neo-Gothic design. A particularly recognizable element is the way the towers on the façades are formed and decorated. Selected examples of sacred architecture from Galicia, built in the last quarter of the nineteenth century (by Teodor Talowski, Sławomir Odrzywolski, Julian Zachariewicz, and Jan Sas-Zubrzycki), were subjected to formal-genetic analysis as a context and source for some of the solutions used by Michał Kowalczuk. The article aims to draw researchers’ attention to the lesser-known Lviv architect Michał Kowalczuk, who was active not only in design but also in the fields of education (at the Polytechnic School in Lviv), science (through involvement in associations and editorial work), documentation (drawings of monuments, including those of Lviv), and literature (scientific dissertations published in the press and as independent monographs). The article also seeks to inspire further research on this architect.