Hamza Kastrioti (Latin: Ameses Castriota; fl. ) or Bernardo Kastrioti (after his conversion to Christianity), was a 15th-century Albanian nobleman and the nephew of George Kastrioti Skanderbeg. Probably born in Ottoman territory, after the death of his father Stanisha he was raised by Skanderbeg, who took him in his military expeditions. After the Battle of Nish he deserted Ottoman troops together with his uncle Skanderbeg, converted to Christianity and changed his name to Bernardo.