Elizabeth Amy Kreiser Weisburger (April 9, 1924 – February 12, 2019) was an American chemist who has made significant contributions in medicine and chemistry specifically chemical carcinogenesis. She worked for nearly 40 years at the National Cancer Institute and has received multiple awards for her work. Weisburger's research in chemical carcinogenesis was necessary in order to find treatments for cancer. Some of Weisburger's work include studying carcinogenesis, looking at the activity of carcinogens, and also determining the dangers of chemotherapy drugs. Elizabeth Weisburger is considered to be a pioneer in chemical carcinogenesis.