Orion is an opera by the French composer Louis Lacoste on a libretto by Joseph de Lafont and Simon-Joseph Pellegrin. It was first performed at the Paris Opera (at the time known as "Académie royale de Musique") on 19 February 1728 and was performed for the last time on 12 March 1728. The reduced score was printed in quarto by Christophe Ballard. Orion only received a modest success and was never staged nor performed again for another season. However, extracts have already been played by the ensemble Fuoco e Cenere in 2019.