Nikolai Paul Kornelius Molvik (28 August 1905 - 9 July 1981) was a Norwegian politician for the Christian Democratic Party.
He was born in Herøy.
He was elected to the Norwegian Parliament from Bergen in 1965, but was not re-elected in 1969. He had previously served in the position of deputy representative during the term 1958 - 1961, for Møre og Romsdal
Molvik was involved in local politics in Volda, Ålesund, Kristiansund, and Bergen.