Night Network is Melbourne's weekend overnight public transport system, which commenced operation on 1 January 2016 for a 12-month trial. It comprises all of Melbourne's regular electric railway lines, six tram lines, 21 night bus services, and four regional coach services. The night bus services replaced the previous NightRider services, with 10 operating radial from the CBD and the remaining 11 operating from suburban railway stations.

In January 2014, in the lead up to the 2014 Victorian State election, the Australian Labor Party promised to commence a trial of all night public transport on weekends, dubbed Homesafe, if elected. Following the Australian Labor Party's victory, cost overruns were announced in August 2015, with the plan to cost $83.6 million, not the $50 million estimated during the election, due to increased security costs. The network was unveiled on 30 October 2015, along with its new name, Night Network, with the Minister for Public Transport Jacinta Allan claiming 70% of Melbourne's dwellings would be covered by Night Network.

Night Network commenced operation on 1 January 2016 on a 12-month trail basis. In its first weekend of operation 9862 myki touch ons were recorded, representing a three-fold increase in patronage compared to the former NightRider bus system. However, this may understate patronage as it fails to account for fare evaders, those traveling in the free tram zone, and those with periodical tickets who may not have touched on.

All of Melbourne's train services operated by Metro Trains Melbourne, except the City Loop, Showgrounds line, and Stony Point line operate as part of Night Network, servicing all Metropolitan stations except for City Loop stations and Southern Cross, which close at midnight and 1am respectively. Trains operate hourly on all lines, with some lines operating as shuttles from major interchange stations.

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