Niewczyk Marian, *2 February 1924 Bydgoszcz, Polish luthier, son and student of Stanisław. Graduate of the University of Poznań, master craftsman since 1947, founding member of the Stowarzyszenie Polskich Artystów Lutników. In 1949 he won third place at an exhibition and competition at the Museum of Musical Instruments in Poznań .
Literature: A. Kucharska Współczesna polska sztuka lutnicza, Bydgoszcz 1989; K. Rottermund Budownictwo instrumentów muzycznych na terenie Wielkopolski w XIX i I połowie XX wieku, doctoral dissertation IS PAN, 1992.