| St. Casimir's Roman Catholic Church | |
| Location: | 164 Nichols Street Newark, New Jersey |
| Coordinates: | 40.7233°N -74.1589°W |
| Built: | 1917 |
| Architect: | Joseph A. Jackson Ludwig Von Gerichten (artisan) |
| Architecture: | Renaissance |
| Added: | July 9, 1997 |
| Refnum: | 97000773 |
| Designated Other1 Name: | New Jersey Register of Historic Places |
| Designated Other1 Abbr: | NJRHP |
| Designated Other1 Link: | New Jersey Register of Historic Places |
| Designated Other1 Number: | [1] |
| Designated Other1 Num Position: | bottom |
| Designated Other1 Color: |
|
St. Casimir's Roman Catholic Church is a historic Roman Catholic parish church located within the Archdiocese of Newark at 164 Nichols Street in the Ironbound section of Newark, Essex County, New Jersey, United States. The church was built in 1917 and added to the National Register of Historic Places in 1997.