David S. Krantz (born 1949) is an American health psychologist and professor emeritus of medical and clinical psychology at the Uniformed Services University of the Health Sciences (USUHS) in Bethesda, Maryland. His research addresses the impact of psychological stress on health, with an emphasis on cardiovascular disease. He is a past president of the Society for Health Psychology (Division 38 of the American Psychological Association) and was editor of the journal Health Psychology.

Education Krantz received a B.S. in psychology from the City College of New York in 1971 and a Ph.D. in psychology from the University of Texas at Austin in 1975, where his doctoral advisor was David C. Glass.

Career Krantz was an assistant professor of psychology at the University of Southern California from 1975 to 1978. He joined USUHS in 1978 and was a professor of medical and clinical psychology there until his retirement in 2023. He chaired the Department of Medical and Clinical Psychology from 1999 to 2014, and was USUHS's principal investigator for the Center for Deployment Psychology (now the Consortium for Defense Psychology) from 2006 to 2015.

He was president of the Academy of Behavioral Medicine Research from 1994 to 1995, editor-in-chief of Health Psychology from 1995 to 1999, and president of the Society for Health Psychology from 2005 to 2006.

Research Krantz's research has included studies of stress reactivity and cardiovascular disease, collaborative research with multidisciplinary research groups on mental stress–induced myocardial ischemia in coronary artery disease patients,Studies with collaborative groups include: ; ; ; ; and studies of the effects of mental stress on other cardiac complications and outcomes.Further studies include: ;

In 1980, he developed the Krantz Health Opinion Survey, a questionnaire measuring patients' preferences for information and for involvement in their own health care, which is listed in psychological test reference works,Listed in: ; and has been used in translated versions in several languages.Reported in: ;

Awards and honors American Psychological Association (APA) Distinguished Scientific Award for an Early Career Contribution to Psychology (1982) Society for Health Psychology (formerly APA Division 38) Award for Outstanding Contributions to Health Psychology, Early Career category (1981) and Lifetime Career category (2000) Fellow of the American Psychological Association, the Academy of Behavioral Medicine Research, and the Society for Biopsychosocial Science and MedicineFellowships: ; ;

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