Abstract: Rational breeding of walnut (Juglans regia L.) started in Hungary in the 1950s. This work began under Prof. Dr. P�ter Szentiv�nyi’s leadership who studied the Carpathian race first of all. Our breeder did the landscape selection. The achievement of this work was 3 registered cultivars (‘Als�szentiv�ni 117’, 'Milotai 10', ‘Tiszacs�csi 83’). The landscape selection was succeeded by cross breeding in the 1970s. Prof. Dr. Szentiv�nyi used as a for “father” the in the USA bred ‘Pedro’ cultivar that has good genetic characteristics like “lateral bearing” and bright colour of kernel. (Szentiv�nyi, 2000) More important breeding aims of our work were: late leafing out time, bigger ratio of the most “lateral bearing”. Among the hybrids of ‘Milotai 10’ and ‘Als�szentiv�ni 117’ we selected 5 to apply for registration. In 2003 the National Institute for Agricultural Quality Control registred 3 (‘Milotai k�sei’ (former hybrid number Milotai 10-9), ‘Milotai b�term�’ (former hybrid number Milotai 10-14), ‘Als�szentiv�ni k�sei’ (former hybrid number Als�szentiv�ni 117-31) hybrids from our candidates on the National List.