James Densley (born April 13, 1982) is a British-American sociologist and Professor of Criminal Justice at Metropolitan State University. He is best known as co-founder of The Violence Project and as co-author of the bestselling book, The Violence Project: How To Stop a Mass Shooting Epidemic. Densley has also published extensively on street gang issues and has been described as "among the most accomplished rising leaders of modern gang research in criminology." He was among the top 250 most cited criminologists in the world in 2019.