Kelly Weinersmith is an American biologist, writer, and podcaster. She is a member of the faculty at Rice University in the Department of BioSciences and has collaborated with the Parasite Ecology Group at the University of California, Santa Barbara. Weinersmith is known for her work in science communication and public engagement. She co-authors popular science books with her husband Zach Weinersmith, including Soonish (2017) and A City on Mars (2023).