Marvens is a Haitian form of Marvin, which goes back either to the Welsh Merfyn, of uncertain meaning, or to the Old English Maerwine, "famous friend". The added s is a hallmark of Haitian Creole naming, seen also in Kervens and Wendens, and in the United States the name is given almost entirely in Haitian American families in Florida and the Northeast. Marvens ranked number 9880 in 2000, climbed through the 2010s and reaches its best rank, number 2468, in 2025 with 55 boys.