Rabbi Yaakov Yitzhak Neumann or Neimann (1920, Pápa, Hungary – 2007, Montreal), also known as "Pupa Rav", was the rabbi of Montreal's Belzerhasidim from 1953 until his death in 2007.
After surviving the Holocaust, in which his wife and only son, Nuchem, were killed, Neumann served as head of the remaining Hungarian Pápa community (c. 1948), from which he gained the title, Puper Rav.
Bauer, Julien, "Les communautés hassidiques de Montréal". Dans P. Anctil et I. Robinson (dir.), Les communautés juives de Montréal, Sillery, Septentrion, 2011, p. 216-233.
Gutwirth, Jacques. "Hassidism and Urban Life". The Jewish Journal of Sociology . 38, 1996, p. 107-15.
Gutwirth, Jacques. "The Structure of a Hassidic Community in Montreal". The Jewish Journal of Sociology. 14, 1972, p. 43-62.
Shaffir, William. "Chassidic Communities in Montreal". The Canadian Jewish Mosaic. Eds. Morton Weinfeld, Irwin Cotler, William Shaffir ed. Rexdale, Ont.: J. Wiley & Sons Canada, 1981, p. 273-86. Print.