Justvik (also called Gjusvik) is a village in the municipality of Kristiansand, Norway. Its population (as of January 2012) is 1,803. Justvik is located to the West of Topdalsfjorden.
Before municipal amalgamation with Kristiansand in 1965, Justvik was considered part of the Tveit municipality, while nearby areas Justnes and Eidsbukta belonged to Oddernes municipality.
Justvik has both older housing and several housing estates which were built during the economic boom from the mid-1960s to the mid-1980s. Within the village is Justvik Church, Justvik School (for elementary and middle school students), sports facilities and a grocery store.