Sean M. Sullivan is a former college soccer player and currently the athletic director at The Catholic University of America in Washington, D.C., where he replaced Michael S. Allen.
Sullivan earned a bachelor's degree in American history from the University of California, Santa Cruz in 1991, a master's degree from the University of San Francisco in sports and fitness management in 1996 and a graduate certificate in Leadership for Change from Boston College in 2004.
He played college soccer for four seasons (1988, 1989, 1990 and 1991) at University of California, Santa Cruz, and was named a regional All-American in 1991.
Sullivan was the head men’s soccer coach at the University of California, Santa Cruz (1991–1996).
He was interim director of athletics at the University of California, Santa Cruz (2000–2001) before holding the AD post at York College of Pennsylvania from 2004 to 2011. During the 2011–12 and 2012-13 seasons, Sullivan was Director of Athletics and Recreation at Clark University, and September 24, 2013, he was named associate vice president and director of athletics at The Catholic University of America, effective November 19.