Rokosjøen is a lake in Løten Municipality (and a very small part crossing into Elverum Municipality) in Innlandet county, Norway.
There is a camping facility on the east end of the lake.
Oset Chapel is located beside the campground facility.
Rokoberget Church was dedicated to Saint Michael and mentioned in a papal letter from 1254.
This article related to a lake in Innlandet in Norway is a stub.