| Type: | bishop |
| Joseph Nieminski | |
| Appointed: | --> |
| Retired: | --> |
| Consecration: | June 26, 1968 |
| Birth Date: | 22 May 1926 |
| Education: | Savonarola Theological Seminary |
Joseph Ignatius Nieminski (May 22, 1926 - September 20, 1992) was the first bishop of the Toronto-based Canadian Diocese of Polish National Catholic Church. He was born in Hazleton, Pennsylvania and ordained to the priesthood in 1946 after studies at Savonarola Theological Seminary in Scranton. He was consecrated in 1968, and served on the Polish National Catholic Church's dialogue commission with the Roman Catholic Church. While in Toronto with oversight for Canadian PNCC parishes, he also organized a Croatian National Catholic Church. Nieminski died in Toronto.