Moret-sur-Loing is a former commune in the Seine-et-Marne department in the Île-de-France region in north-central France.
On 1 January 2015, Moret-sur-Loing and Écuelles merged becoming one commune called Orvanne, which merged into the new commune Moret-Loing-et-Orvanne on 1 January 2016.
The town was a source of inspiration for Monet, Renoir and Sisley.