Kazimierz Romaniuk was a Polish Catholic prelate, professor of biblical studies and participant of the Warsaw Uprising. In 2004, Romaniuk became the bishop emeritus of the diocese of Warszawa-Praga. He was previously the rector of the Higher Metropolitan Seminary and the Academic Study of Catholic Theology in Warsaw (from 1971 to 1982), the auxiliary bishop of Warsaw (from 1982 to 1992), and the diocesan bishop of Warsaw-Praga (from 1992 to 2004).