Marijn de Vries (born 19 November 1978) is a Dutch racing cyclist and journalist. De Vries took up bicycle racing in 2008 whilst working as a reporter for the Dutch TV programme Holland Sport. She subsequently attempted to turn professional as part of a radio documentary she made, leading to her joining Leontien van Moorsel's Leontien.nl team in 2010. She competed in the 2013 UCI women's team time trial in Florence.On 30 August 30 2015 de Vries announced her retirement from professional cycling.