Nässlingen is a locality situated in Ljusdal Municipality, Gävleborg County, Sweden with 333 inhabitants in 2010.
Nässlingen is a sparsely populated area with a few farms and holiday homes. The main industry is forestry. There is also some tourism, with hikers and cross-country skiers visiting the area in the winter. Nässlingen has a small shop, a school, and a church. There is also a football pitch and a playground.
Just south of Nässlingen the Ekorråsen nature reserve can be found. This nature reserve is known for its large population of eagles.
