Alexandre aux Indes (Alexander in India) is an opera by the French composer Nicolas-Jean Lefroid de Méreaux, first performed at the Académie Royale de Musique (the Paris Opera) on 26 August 1783.
The libretto, by Étienne Morel de Chédeville, concerns Alexander the Great and the Indian king Porus.
The plot has similarities with Racine's tragedy Alexandre le Grand (1665) and Metastasio's libretto Alessandro nell'Indie.
King Porus is due to marry Axiane when he hears news that Alexander the Great is threatening his kingdom.
In the ensuing battle, Porus is abandoned by his men but bravely fights single-handedly against a band of enemies, until he is captured.