Gilbert J. "Gilly" Sullivan (born July 5, 1928 in Fredericksburg, VA, died January 5, 2009 in Charlottesville, VA) was the longtime director of the University of Virginia Alumni Association for 35 years. Appointed to the position in 1958 after the retirement of J. Malcolm "Mack" Luck, Sullivan remained in the position until his retirement in 1993. During his years at the Alumni Association, he helped develop the Virginia Student Aid Foundation (now the Virginia Athletics Foundation) and significant expansion of the Jefferson Scholars Program.