Stavern is a small Norwegian town located in the municipality of Larvik, south of the city of Larvik in Vestfold.

The port and naval base of Stavern (until 1930 named Fredriksvern) was established as a municipality 1 January 1838 (see formannskapsdistrikt). Even though it was an important port it was first given its status as a town (kjøpstad) 1 July 1942. The small town and municipality of Stavern was merged with the larger town of Larvik 1 January 1988.