| Robert S. Haltiwanger | |
| Citizenship: | United States |
| Fields: | Biochemistry, Biology |
| Workplaces: | Stony Brook University |
| Alma Mater: | Duke University |
| Known For: | Glycobiology, O-Fucose Modifications |
Robert S. Haltiwanger is professor of biochemistry at the State University of New York at Stony Brook and chair of the department of biochemistry and cellular biology. Haltiwanger received his Bachelor of Science from Duke University and then his doctorate from the same institution. His primary field of interest is glycobiology with a focus on O-fucose modifications, NOTCH protein, and related projects.