Næs Ironworks (Norwegian: Næs Jernverk or Næs verk) in Holt (now part of Tvedestrand municipality, in Aust-Agder county, Norway), was an iron works which started operation in 1665 under the name “Baaseland Værk”. The blast furnace and foundry were located at the Båsland farm, while the associated forge was located a kilometer further east, by the Storelva river at Næs. The blast furnace was new, and not an extension of the at Arendal which ceased operations in the 1650s. “Baaseland Værk” was given the name Naes blast furnace operation when the buildings were concentrated by Storelva in 1738.About 1840 the firm was renamed Jacob Aall & Søn. It ceased operation in 1959.