| Paul B. Dunbar | |
| Office: | 5th Commissioner of Food and Drugs |
| President: | Franklin D. Roosevelt Harry S. Truman |
| Term Start: | May 6, 1944 |
| Term End: | May 31, 1951 |
| Predecessor: | Walter G. Campbell |
| Successor: | Charles W. Crawford |
| Birth Date: | 29 May 1882 |
| Birth Place: | Lebanon, Pennsylvania |
| Death Place: | Rockledge, Florida |
| Party: | Democratic |
Paul B. Dunbar (May 29, 1882 – August 22, 1968) was an American chemist who served as Commissioner of Food and Drugs from 1944 to 1951.[1]