thumb|250px|right|Hyperpyron of Emperor Manuel I Komnenos (r. 1143–1180), showing its typical [[scyphate (cup-shaped) form.]]The hyperpyron (, nómisma hypérpyron ) was a Byzantine coin in use during the late Middle Ages, replacing the solidus as the Byzantine Empire's standard gold coinage in the 11th century. It was introduced by emperor Alexios I Komnenos.