Mary O'Neill (born February 11, 1965) is an American fencer. She graduated from University of Pennsylvania and Harvard Medical School. She competed in the women's individual and team foil events at the 1988 and 1992 Summer Olympics and won a gold medal at the 1987 Pan American Games in the team foil event. References External links 1965 births Living people American female foil fencers Olympic fencers of the United States Fencers at the 1988 Summer Olympics Fencers at the 1992 Summer Olympics People from Concord, Massachusetts Pan American Games medalists in fencing Pan American Games gold medalists for the United States University of Pennsylvania alumni Harvard Medical School alumni Fencers at the 1987 Pan American Games Medalists at the 1987 Pan American Games Sportspeople from Middlesex County, Massachusetts