Gjæslingan Lighthouse () is a coastal lighthouse in Nærøysund Municipality in Trøndelag, Norway.
It was established in 1877, was reinforced in 1961 and automated in 1987.
Gjæslingan lighthouse stands on the HaraldsøykrÃÂ¥ka islet which is part of the Sør-Gjæslingan island group on the north side of the Foldafjord. The white building consists of a high red iron tower on a stone base. The white light flashes once every ten seconds, and it can be seen for about . The lighthouse also emits a "G" Racon signal.