Stausee Gibidum (Gibidum reservoir or "Stausee Gebidem") is a reservoir in the canton of Valais, Switzerland. Its surface area is 0.21 kmò, shared by the municipalities of Naters and Riederalp.
The construction of Gebidem dam was started in 1964 and completed by 1967. The arch dam has an elevation of 122 m and a crest length of 327 m.