Cheryl Bart is married to Fred Bart, also a company director, and has two children. On 23 May 2008, Bart and her 23-year-old daughter Nikki became the first mother-daughter team to reach the summit of Mount Everest. The scaling of Everest also saw them complete the Seven Summits challenge: climbing the highest mountains in each continent. Her father, Emeric Klinghoffer, was a Hungarian concentration camp survivor, and her mother was Polish. Her daughter is Nikki Bart, with whom she became part of the first mother-daughter team to summit Mount Everest and complete the Seven Summits.