Justvik or Gjusvik is a village and district in the municipality of Kristiansand in Vest-Agder county, Norway. Its population (as of January 2014) is 2,770. The village of Justvik is located on the west shore of the Topdalsfjorden, just north of the lake Gillsvannet. Before the large municipal merger with Kristiansand in 1965, the Justvik area was part of the old municipality of Tveit, while the Justnes and Eidsbukta areas immediately to the south belonged to Oddernes municipality.