The Lac de Creno () is a small lake in the Monte Rotondo massif in the Corse-du-Sud department of France.
The Lac de Creno is in the Monte Rotondo massif at an altitude of . It is in the Orto commune of Corse-du-Sud to the north of the Monte Sant Eliseo. It is drained by the Ruisseau de Creno, which flows south to join the Fiume Grosso, a tributary of the Liamone river. It is a glacial lake, partially covered by water lilies and surrounded by a forest of laricio pines. It is fairly easy to reach by foot from the village of Soccia at an elevation of , and is busy in summer.