The Betasii (or Baetasii) was the name Germanic tribal grouping within the Roman province of Germania Inferior, which later became Germania Secunda. Their exact location is still unknown, although two proposals are, first, that it might be the source of the name of the Belgian village of Geetbets, and second, that it might be further east, nearer to the Sunuci with whom they interacted in the Batavian revolt, and to the Cugerni who lived at Xanten. The area of Gennep, Goch and Geldern has been proposed for example.