| Ralph Stephan | |
| Full Name: | Ralph William Stephan Jr |
| Nationality: | American |
| Sport: | Rowing |
| Birth Date: | 16 November 1928 |
| Birth Place: | Cleveland, Ohio, United States |
| Death Place: | Mount Shasta, California, United States |
Ralph Stephan (November 16, 1928 - April 30, 2018) was an American rower.[1] He and John Wade competed in the men's coxless pair event at the 1948 Summer Olympics.[2]