Tinnhølen or Tinnhylen is a lake in Norway that lies in the municipality of Eidfjord in Vestland county and a very small part crosses into the municipality of Nore og Uvdal in Viken county.
The lake known as Tinnhølen or Tinnhylen is situated in the Eidfjord municipality of Norway, which includes a tiny section that extends into the Nore og Uvdal municipality within the Viken region.