Larvik is a municipality in Vestfold county, Norway. It is located in the traditional district of Vestfold. The administrative centre of the municipality is the city of Larvik. Other main population centres in the municipality include the town of Stavern and the villages of Gjone, Helgeroa, Hem, Kjose, Kvelde, Nevlunghavn, Skinmo, Svarstad, Ula, Verningen, and Tjøllingvollen.