Kenneth Jan Singleton (born 1951) is an American economist. He is a leading figure in empirical financial economics, and a faculty member at Stanford University. As the Adams Distinguished Professor of Management, Emeritus at Stanford Graduate School of Business, Singleton teaches a variety of degree courses in finance. He is the Co-Founder and President of 1 Grain to 1000 Grains, a nonprofit that provides healthful eating and financial planning programming for families in low-income communities.