The Division of Maribyrnong (/mærəbənɒŋ/) is an Australian electoral division in the state of Victoria. It is located in the inner north-western suburbs of Melbourne. Suburbs include Aberfeldie, Airport West, Avondale Heights, Essendon, Footscray, Gowanbrae, Keilor East, Maribyrnong, Moonee Ponds, Niddrie, West Footscray and Tullamarine. Due to redistributions, the division has been slowly moving west and changed with the introduction of the Division of Fraser in 2018. According to the 2011 census, Maribyrnong has the highest proportion of Catholics in any Commonwealth Electoral Division in Australia with 41.6% of the population.

Since 1984, federal electoral division boundaries in Australia have been determined at redistributions by a redistribution committee appointed by the Australian Electoral Commission. Redistributions occur for the boundaries of divisions in a particular state, and they occur every seven years, or sooner if a state's representation entitlement changes or when divisions of a state are malapportioned.

The division was proclaimed at the redistribution of 13 July 1906, and was first contested at the 1906 election. The division was named after the Maribyrnong River, which runs through it. A safe Labor seat for most of the first half of the 20th century, it became a marginal Liberal seat for most of the 1950s and 1960s, in part due to the influence of the Democratic Labor Party. Labor retook the seat in 1969, and for most of the time since then, it has been a comfortably safe Labor seat.

Prominent former members include James Fenton, a minister under James Scullin and Joseph Lyons; Arthur Drakeford, a minister under John Curtin, Frank Forde and Ben Chifley; and Moss Cass, a minister under Gough Whitlam. The current member for Maribyrnong since the 2007 election is the former National Secretary of the Australian Workers' Union and former Opposition Leader Bill Shorten.

Image		Member	Party	Term	Notes
		Samuel Mauger (1857–1936)	Protectionist	12 December 1906 – 26 May 1909	Previously held the Division of Melbourne Ports. Served as minister under Deakin. Lost seat
			Liberal	26 May 1909 – 13 April 1910
		James Fenton (1864–1950)	Labor	13 April 1910 – March 1931	Served as minister under Scullin and Lyons. Lost seat
			Independent	March 1931 – 7 May 1931
			United Australia	7 May 1931 – 15 September 1934
		Arthur Drakeford (1878–1957)	Labor	15 September 1934 – 10 December 1955	Served as minister under Curtin, Forde and Chifley. Lost seat
		Philip Stokes (1906–1983)	Liberal	10 December 1955 – 25 October 1969	Lost seat
		Moss Cass (1927–2022)	Labor	25 October 1969 – 4 February 1983	Served as minister under Whitlam. Retired
		Alan Griffiths (1952–)		5 March 1983 – 29 January 1996	Served as minister under Hawke and Keating. Retired
		Bob Sercombe (1949–)		2 March 1996 – 17 October 2007	Previously held the Victorian Legislative Assembly seat of Niddrie. Retired
		Bill Shorten (1967–)		24 November 2007 – present	Served as minister under Rudd and Gillard. Served as Opposition Leader from 2013 to 2019. Incumbent. Currently a minister under Albanese

• Maribyrnong Covered Suburbs - Australian Electoral Commission

37°45′11″S 144°51′32″E / 37.753°S 144.859°E / -37.753; 144.859