Elmer S. Riggs
| Elmer Samuel Riggs | |
|---|---|
| Riggs (right) and H.William Menke (left)  working on Diplodocus and Camarasaurus bones | |
| Born | January 23, 1869 | 
| Died | March 25, 1963 (aged 94) | 
| Citizenship | United States | 
| Alma mater | University of Kansas | 
| Known for | Brachiosaurus, Thylacosmilus, sauropods as terrestrial animals, Brontosaurus as a junior synonym of Apatosaurus | 
| Scientific career | |
| Fields | Paleontology | 
| Institutions | American Museum of Natural History Field Museum of Natural History | 
| Academic advisors | Samuel Wendell Williston | 
Elmer Samuel Riggs (January 23, 1869 – March 25, 1963) was an American paleontologist known for his work with the Field Museum of Natural History in Chicago, Illinois.