Kuncewicz is a typical Polish-Ruthenian gentry family, like many other Szlachta houses of the Kingdom of Poland and the Duchy of Ruthenia, later prominent in Polish Wikiportal/History, Wikiportal/Science, and Wikiportal/Art. They are descended from Jakub Kuncewicz (15th century – 1523). They used the Łabędź Coat of Arms.