The article discusses the problem of given names of Jews who lived in Bydgoszcz between 1920 and 1939. The diaspora counted at most two thousand (about 1,5% of the total population) and, apart from Poznań, it was the largest concentration of Jews in the Poznań voivodeship. The data was extracted from a list of contribution payers of the Jewish religious community from 1939. The current paper continues the research started in my previous article (Jaracz 2007) (‘Last names of Bydgoszcz Jews in the context of the Polish anthroponymic system’).