Daniel Todd Gilbert (born November 5, 1957) is an American social psychologist and writer. He is the Edgar Pierce Professor of Psychology at Harvard University, and is known for his research with Timothy Wilson of the University of Virginia on affective forecasting. He is the author of the international bestseller Stumbling on Happiness, which has been translated into more than 30 languages and won the 2007 Royal Society Prizes for Science Books. He has also written essays for several newspapers and magazines, hosted a short, non-fiction television series on PBS, and given three popular TED talks.
At the age of 19, Gilbert was a high school dropout who wanted to be a science fiction writer. In an attempt to improve his writing skills, he took a bus to the local community college to enroll in a creative writing class. When he was told that the creative writing class was full, he signed up for the only class that was still open: Introduction to Psychology. Gilbert eventually received a Bachelor of Arts in Psychology from University of Colorado Denver in 1981 and a Ph.D. in social psychology from Princeton University's Department of Psychology in 1985. From 1985 to 1996, he was a faculty member at the University of Texas at Austin. Since 1996, he has been a faculty member at Harvard University.
He and his wife, Marilynn Oliphant, live in Cambridge, Massachusetts. Gilbert has one son and two grandchildren.