Rugii

thumb|right|300px|Places and peoples associated with Rugii-like names in different historical periods, including Rogaland, [[Rugiland (5th century); Rügen]]

The Rugii, Rogi or Rugians (), were one of the smaller Germanic peoples of Late Antiquity who are best known for their short-lived 5th-century kingdom upon the Roman frontier on the Danube river in what is now Austria, west of Vienna. This kingdom first appeared in records after the death of Attila in 453. The next year, in 454, the Rugii, Heruli, Sciri and other peoples who had been allies within Attila's Hunnic empire were able to create short-lived, independent kingdoms in the Middle Danube region after they defeated an alliance of Attila's sons and the Ostrogoths at the Battle of Nedao. In 469 they were part of a similar alliance which lost to the Ostrogoths at the Battle of Bolia, weakening their kingdom significantly.