Tetide (Thetis) is an opera by the composer Christoph Willibald Gluck. It takes the form of a serenata in two parts. The Italian-language libretto is by Giovanni Ambrogio Migliavacca. The opera premiered on 10 October 1760 at the Hofburg Palace, Vienna.
| Cast | Voice type | Premiere cast | |
|---|---|---|---|
| Tetide (Thetis) | soprano | Caterina Gabrielli | |
| Apollo | soprano castrato | Giovanni Manzoli | |
| Marte (Mars) | tenor | Carlo Carlani | |
| Imeneo (Hymen) | soprano castrato | Antonio Priori | |
| Pallade (Pallas Athena) | soprano | Maria Picinelli | |
| Venere (Venus) | soprano | Teresa Giacomazzi | |
| Chorus: Sea gods and goddesses | |||