| Ignacy Stanisław Czyżewski | |
| Bishop of Sejny | |
| Predecessor: | Jan Klemens Gołaszewski |
| Successor: | Mikołaj Jan Manugiewicz |
| Ordination: | 26 August 1767 |
| Consecration: | 6 August 1820 |
| Consecrated By: | Adam Michał Prażmowski |
| Birth Date: | 5 December 1753 |
| Birth Place: | Kalisz |
| Death Place: | Warsaw |
Ignacy Stanisław Czyżewski (5 December 1753 - 11 December 1823) was a bishop of the Roman Catholic Diocese of Sejny.
Czyżewski was born in Kalisz.[1] On 26 August 1767, he was ordained a Jesuit priest; he later attended Jagellonian University, where he received doctorates in law & canon law. He was later made regent of the chancellory of the diocese of Kujawy, by orders of its bishop, Józef Ignacy Rybiński. On 26 April 1787, he was made a canon of the cathedral of Włocławek.
In 1820, Czyżewski was appointed coadjutor bishop of the Diocese of Sejny by Jan Klemens Gołaszewski.[2] After Gołaszewski's death, Czyżewski was appointed bishop of Sejny on 19 May 1820; he was consecrated on 6 August of the same year by Adam Michał Prażmowski, the bishop of Płock, assisted by Feliks Łukasz Lewiński and Józef Marcelin Dzięcielski. He died on 11 December 1823 in Warsaw.[2]