Demetrio

Demetrio may refer to:


 * Demetrio, a variant of the name Demetrius
 * Demetrio (Metastasio), an opera libretto in three acts by Pietro Metastasio
 * Demetrio (1773), set by Josef Mysliveček
 * Demetrio (1779), reset by Josef Mysliveček
 * Demetrio (Mayr), set by Simon Mayr