Vanush (, also Romanized as Vanūsh, Venoosh, and Venūsh) is a village in Kalej Rural District of the Central District of Nowshahr County, Mazandaran province, Iran.
At the 2006 National Census, its population was 2,483 in 679 households. The following census in 2011 counted 2,322 people in 703 households. The latest census in 2016 showed a population of 2,669 people in 875 households; it was the largest village in its rural district.
Mamraz Lake, the "Lake of Ghosts" Vanush has the distinction of being the settlement closest to the Lake of Ghosts, a site of natural beauty featuring an eerie, drowned landscape of half-submerged hornbeam trees resembling phantoms in the mist.