Ciro riconosciuto is an opera libretto in three acts by Pietro Metastasio, dating to around 1736.
The work's forerunners include 'Amasis by François Joseph de Lagrange-Chancel, in which the inability of parents to recognize their own son also plays an important role.
According to Herodotus, the Median king Astyages had two dreams indicating that he would fall due to a son of his daughter Mandane.
He thus ordered his confidant Harpagus (Arpago in the libretto) to kill Cyrus as soon as he was born.
A German translation of the libretto appeared in 1772 under the title of Der erkannte Cyrus in the fourth volume of Johann Anton Koch's unfinished complete edition of Metastasio's works.