Natalie G. Ahn is a professor of chemistry and biochemistry at the University of Colorado at Boulder. Her research is focused on understanding the mechanisms of cell signaling, with a speciality in phosphorylation and cancers. Ahn's work uses the tools of "classical chemistry" to work on understanding the genetic code and how genetics affects life processes. She has been a professor at the University of Colorado at Boulder since 2003, where she is a Distinguished Professor. She was a Howard Hughes Medical Institute investigator between 1994 and 2014. In 2018, she was elected to the National Academy of Sciences and named a fellow of the American Academy of Arts and Sciences.