Saltdal is a municipality in Nordland county, Norway. It is part of the Salten traditional region. The administrative centre of the municipality is the village of Rognan. Saltdal was established as a municipality on 1 January 1838 .
The Old Norse form of the name must have been Salptardalr. The first element is the genitive case of the river name Salpt and the last element is dalr which means "valley" or "dale". The meaning of the river name is unknown.The coat-of-arms is from modern times. They were granted 1988. The arms show two gold-colored rowan twigs on a red background.