Il trionfo de Clelia is an opera composed by Christoph Willibald Gluck. It takes the form of a dramma per musica in three acts. The Italian-language libretto by Pietro Metastasio is based on several semi-legendary narratives concerning the founding of the Roman Republic. The opera premiered on 14 May 1763 at the Teatro Comunale di Bologna. Although rarely performed since then, it was revived in London in 2012 at the Royal Opera House's Linbury Studio.