The Bolte Bridge is a large twin cantilever road bridge in Melbourne, Victoria, Australia. The Bolte Bridge carries a total of eight lanes of traffic – four lanes northbound and four lanes southbound. While officially only 490 metres in length, the actual structure appears much longer as it forms part of a 5 kilometre elevated roadway between Flemington Road and the West Gate Freeway. It spans the Yarra River and Victoria Harbour in the Docklands precinct to the west of the Melbourne CBD. It forms part of the CityLink system of toll roads that connects the Tullamarine Freeway from the northern suburbs with the West Gate Freeway and the Domain and Burnley tunnels to the Monash Freeway and the south eastern suburbs. It is named after Victoria's 38th and longest-serving Premier, Sir Henry Bolte.

CityLink is a network of tollways in Melbourne, Victoria, Australia, linking the Tullamarine, West Gate and Monash Freeways and incorporating Bolte Bridge, Burnley Tunnel and other works. In 1996, Transurban was awarded the contract to augment two existing freeways and construct two new toll roads – labelled the Western and Southern Links – directly linking a number of existing freeways to provide a continuous, high-capacity road route to, and around, the central business district. CityLink uses a free-flow tolling electronic toll collection system, called e-TAG. CityLink is currently maintained by Lendlease Services.