Objectives Mitral valve (MV) regurgitation is a common manifestation in patients with Marfan syndrome (MFS) and is age dependent. Valve pathology shares some features with myxomatous MV disease. Surgical treatment is still being debated and not well characterized in patients with MFS.Patients and Methods We retrospectively evaluated the results of mitral valve repair (MVR) of symptomatic patients with MFS who underwent surgery between January 2004 and April 2011. MFS was diagnosed following the Ghent criteria. MVR was performed in 12 patients. Three patients underwent minimally invasive MVR despite severe thorax deformities. Mean follow-up was 60.1 months (95% CI: 48-72) and was complete.Results Thirty-day mortality was 0%.