Former Treasurer Dominic Perrottet has been voted in as the Premier of NSW.

The Liberal party room voted between Mr Perrottet and Planning Minister Rob Stokes to replace Gladys Berejiklian.

Mr Perrottet claimed the title of Premier, 39 votes to 5.

Stuart Ayres has been nominated as the Deputy while Matt Kean will take over as Treasurer.

Tomorrow, the Nationals are set to vote on a replacement for John Barilaro.