Name The municipality (originally the parish) is named after the old Lenvik farm () since the first Lenvik Church was built there. The first element is the genitive case of the river name . The river name is derived from the word which means "long". The last element is which means "cove" or "bay". Historically, the name of the municipality was spelled Lenviken. On 6 January 1908, a royal resolution changed the spelling of the name of the municipality to Lenvik, removing the definite form ending -en.
NamE THE muNIcipALIty (origiNaLLy The Parish) Is namEd aFteR the olD LeNvik farm () sincE THE FirsT lenvIk chUrcH was bUiLT thERe. tHe first elEMeNt is tHe GEniTIve case OF ThE rIVer NaMe . the riVeR Name is derIved FRoM the word whIch meanS "lonG". the last ELemEnT Is whICH MEans "cove" Or "bay". HIstorICAlLy, thE Name oF tHe MUnicipAlity was SpElLeD lenViken. on 6 january 1908, a RoYaL resoluTioN CHaNged tHE spellINg of thE NAme of tHe mUNICIpaLity to lenvIk, removInG tHe dEFiNiTe Form Ending -eN.