Tato (died 510) an early 6th century and was a king of the Lombards. He was the son of Claffo and a king of the Lething Dynasty.
According to Procopius the Lombards were subject to the Heruli at this time and paid tribute. In 508 he fought with king Rodolph of the Heruli who was slain. It was a devastating blow to the Heruli and augmented the power of the Lombards. Paul the Deacon gives an interesting story that the war was caused by Tato's daughter Rumetrada murdering Rodolph's brother.
Tato was murdered by his nephew Wacho (in 510).