Ed Diener

Edward Francis Diener (July 25, 1946 – April 27, 2021) was an American psychologist and author. Diener was a professor of psychology at the University of Utah and the University of Virginia, and Joseph R. Smiley Distinguished Professor Emeritus at the University of Illinois, as well as a senior scientist for the Gallup Organization. He is noted for his research over the past thirty years on happiness, including work on temperament and personality influences on well-being, theories of well-being, income and well-being, cultural influences on well-being, and the measurement of well-being. As shown on Google Scholar as of April 2021, Diener's publications have been cited over 257,000 times.

For his fundamental research on the subject, Diener was nicknamed Dr. Happiness. Researchers he has worked with include Daniel Kahneman and Martin Seligman.