The Rowville railway line is a proposed extension to the suburban rail network of Melbourne, Australia. The line was first proposed by the 1969 Melbourne Transportation Plan, and a variety of studies have been conducted into its feasibility and possible routes, but no construction work has been undertaken. Major obstacles to the line's construction include the proposed connection to the existing Dandenong corridor, one of the busiest in Melbourne, and the lack of a protected reservation in which to build the line. As a consequence, various alternative proposals for providing mass public transport to the Rowville area have also been proposed, although none have yet been constructed.