Oium or Aujum was a name for an area in Scythia, where the Goths under their king Filimer settled after leaving Gothiscandza, according to the Getica by Jordanes, written around 551. Jordanes does not give the etymology, but many scholars interpret this word as a dative plural to the widespread Germanic words *aujō- or *auwō- and means "well-watered meadow" or "island".

According to some historians, Jordanes' account of the Goths' history in Oium was constructed from his reading of earlier classical accounts and from oral tradition. According to other historians, Jordanes' narrative has little relation to Cassiodorus,' no relation to oral traditions, and little relation to actual history.

Archaeologically, the Chernyakhov culture of parts of Ukraine, Moldova, and Romania corresponds with Gothic Scythia.

Jordanes states that king Filimer led the Goths in a search for suitable lands and when they arrived in Oium, they were delighted with the richness of the land. They crossed a bridge to get there, but when half the army had made it across, the bridge fell into ruin, and so no one else could pass into the area anymore. According to Jordanes, the Goths claimed the land for themselves and defeated the previous inhabitants, the Spali.