Benjamin H. Kean (c. 1912 – 1993) was an American physician, author, researcher, and professor at Weill Cornell Medicine in New York City.[1] Kean was born in Valparaiso, Indiana, and grew up in West Orange, New Jersey and Manhattan. He graduated from the University of California at Berkeley and earned a medical degree at Columbia University.[2] Kean was an expert in tropical and rare diseases. He helped discover the cause of traveler's diarrhea and was also the personal doctor to Mohammad Reza Pahlavi, who was Shah of Iran from 1941 until 1979.[3] Kean died of colon cancer at the age of 81.[2]