Lac d'Orédon is a lake raised by a dam in Hautes-Pyrénées, France.

It was one of the first lakes of the Pyrenees to have been built in the 17th century.

[1] In 1864, the Ministry of Agriculture decided to increase and regulate the flow of the Neste canal (feeding Gers rivers) using the lakes of the upper valley of Aure (Aubert, Aumar, Cap-de -Long, Lac d'Orédon).

[1] The lake was expropriated for public utility in June 1869.

[1] Construction of the dam and reservoir was completed in 1884.