What was the German tribe that rome fell to in year 476?

The Germanic tribe that is generally credited with the fall of the Western Roman Empire in 476 AD was the Ostrogoths, specifically under their king Odoacer.

While other Germanic tribes had contributed to the weakening of Rome, it was Odoacer's deposition of the last Roman emperor, Romulus Augustulus, that marked the traditional end of the Western Roman Empire.