The Melbourne rail network is a metropolitan suburban and freight rail system serving the city of Melbourne, Victoria, Australia. The metropolitan rail network is centred around the Melbourne central business district (CBD) and consists of 221 railway stations across 16 lines, which served a patronage of 99.5 million over the year 2021–2022. It is the core of the larger Victorian railway network, with regional links to both intrastate and interstate rail systems.

Melbourne is the capital and most populous city of the Australian state of Victoria, and the second-most populous city in Australia. Its name generally refers to a 9,993 km2 (3,858 sq mi) metropolitan area also known as Greater Melbourne, comprising an urban agglomeration of 31 local municipalities, although the name is also used specifically for the local municipality of City of Melbourne based around its central business area.