Haugating was a Thing in medieval Norway. Haugating served as an assembly for the regions around Vestfold and the area west of Oslofjord.
Although it was not as recognized nationally as the Øreting in Trøndelag, Haugating did play an important role in the history of Norway as a site for the proclamation of kings. At various times, Harald Gille, Sigurd Magnusson, Magnus Erlingsson and Jon Kuvlung were all proclaimed there to be contenders to the throne of Norway.
Haugating was seated in Tønsberg at Haugar (from the Old Norse word haugr meaning hill or burial mound). During the Civil war era in Norway (between 1130-1240), Tonsberg was one of the area where the Bagler faction and other rebel bands stood strong in the battle against the Birchleg. Several rebel bands hailed their royal subjects from Haugating .
Haugar Vestfold Kunstmuseum, which opened to the public 1995, is now located at the site of the former Haugating. A memorial stone was erected on the site during 1954.