| Dan Zehr | |
| Fullname: | Robert Daniel Zehr, Jr. |
| Nicknames: | "Dan" |
| Strokes: | Backstroke |
| Club: | Illinois Athletic Club |
| Collegeteam: | Northwestern University |
| Birth Date: | April 18, 1916 |
| Birth Place: | Fort Wayne, Indiana |
| Death Place: | Raleigh, North Carolina |
Robert Daniel Zehr, Sr. (April 18, 1916 – August 4, 2001) was an American competition swimmer who represented the United States at the 1932 Summer Olympics in Los Angeles, California. Zehr placed fourth in the men's 100-meter backstroke, finishing with a time of 1:10.9.