Marmot is an unincorporated community in Clackamas County, Oregon, United States located in the Mount Hood Corridor.

The community was named by Adolph (or Adolf) Aschoff, a German immigrant who was for many years a forester and guide in the Mount Hood area.

[2] When he settled in the area near the Sandy River in 1883, he found many animal burrows that, according to the local residents, were made by marmots.

[2] When the post office was established in about 1886, Aschoff and two of his friends decided to name it "Marmot" on account of this error.

[2] Construction of the Mount Hood Highway in the 1920s diverted traffic away from Marmot, and fewer visitors came to stay at Aschoff's hotel.