| Saint John's Episcopal Church | |
| Location: | 1537 Neptune Ave., Wilmington, Los Angeles, California |
| Coordinates: | 33.7941°N -118.2703°W |
| Built: | 1883 |
| Designation1: | Los Angeles |
| Designation1 Date: | March 15, 1967 |
| Designation1 Number: | 47 |
| Governing Body: | private |
Saint John's Episcopal Church is a Los Angeles Historic-Cultural Monument located in the Wilmington section of Los Angeles, California, near the Port of Los Angeles. Built in 1883, it is the oldest church building in the harbor area that is still used for regular worship services. It was moved to its present site in 1943.