iarjhcsIARJHCSIARJHCS2709-3336https://doi.org/10.47310/iarjhcs.2021.v02i02.008Transformation of the Nias Traditional Wedding System in the City of Medan, North SumatraZuraidahAdlinaFendiyanusWaruwuSaifulAnwarMatondangUniversitas Islam Sumatera UtaraMarriage customs are a cultural heritage that needs to be preserved and preserved. For this reason, there is a need for mutual awareness that cultural heritage requires management so that it remains sustainable for the next generation. This series of wedding ceremonies can be divided into several stages, such as asking for a hand, delivering the dowry, religious validation, and traditional ceremonies. Likewise, in Nias culture, they have a wedding ceremony called fangowalu. Nias traditional marriages continue to transform according to the times, both weddings on Nias Island and Nias traditional weddings in Medan City, it is known that many marriage processes must be passed according to their original customs, but for the Nias tribe in Medan City it is not all the marriage process is carried out, this is following the existing situation and conditions. The transformation of the Nias traditional marriage system in the city of Medan is caused by the influence caused by socio-cultural factors that exist in the people of the city of Medan. Some of the changes/transformations that exist include those related to a simpler wedding procession and the proposed dowry does not require livestock.