The abbey of Saint-Michel-de-Cuxa (Catalan: Sant Miquel de Cuixà) is a Benedictine abbey located in the territory of the commune of Codalet, in the Pyrénées-Orientales département, in southwestern France. It was founded initially in 840, and then refounded at its present site in 878, after a flood destroyed the original buildings. It was an important cultural centre in the regency of Abbot Oliba.

Parts of what was once building material from the 12th century abbey now partially make up The Cloisters museum in New York City.