Samum was a castrum (fort) in the Roman province of Dacia, situated at the very northern border of that territory. It lied on the right (northern) side of the river Someș, in historical land later known as Transylvania, inside of present Romania. Remnants of this relatively small fortified camp lies within the cadastre of village Cășeiu, 1 kilometre (0.62 mi) to the southwest from the edge of the village.
