The paper analyzes patronymic surnames with suffix -owicz/-ewicz in tombstone inscriptions on selected cemetery on southern Podlasie region. The studied inscriptions are dated as covering two centuries: from the 19th to the 21st centuries. In the tombstone inscriptions from cemetery in Bereść, Hanna, Holeszów, Kodeniec and Wyryki 372 attestations of patronymic surnames with suffix -uk were collected, written in Polish (Roman script) and in Ukrainian (in different varieties of the Cyrillic script).