| Honorific-Prefix: | Rabbi |
| Yaakov Yitzhak Neumann | |
| Synagogue: | Belzer Hasidim, Montreal |
| Synagogueposition: | Rav of Montreal's Belz community |
| Began: | 1953 |
| Ended: | 2007 |
| Birth Name: | Yaakov Yitzhak Neumann |
| Birth Date: | 1920 |
| Birth Place: | Pápa, Hungary |
| Death Date: | 2007 |
| Death Place: | Montreal, Canada |
| Buried: | Kiryas Pupa Cemetery, Ossining, New York |
| Nationality: | Hungarian-Canadian |
| Denomination: | Hasidic Judaism |
| Parents: | Yosef ben Benzion Neumann |
| Spouse: | Unknown (died in Holocaust) |
| Children: | Nuchem (died in Holocaust) |
| Occupation: | Rabbi |
| Other Post: | Pupa Rav in Hungary and Montreal |
Rabbi Yaakov Yitzhak Neumann or Neimann (1920, Pápa, Hungary – 2007, Montreal), also known as "Pupa Rav", was the rabbi of Montreal's Belzer hasidim from 1953 until his death in 2007.
Neumann was born in Pápa, Hungary. His father Yosef ben Benzion Neuman was also a rabbi.
After surviving the Holocaust, in which his wife and only son, Nuchem, were killed, Neumann served as head of the remaining Hungarian Pápa community (1948), from which he gained the title, Puper Rav.
He then emigrated to Australia and then in 1953 to Montreal where there was a Belzer community.[1]
He died in 2007, at 87 without children.