Russell Evan Broadbent (born 25 December 1950) is an Australian politician who was a member of the House of Representatives. He is one of the longest-serving recent members of parliament, having served for a total of over 25 years, from 1990 to 1993, from 1996 to 1998, and from 2004 to 2025. He had represented the divisions of Corinella, McMillan, and most recently, Monash.

In November 2023, Broadbent stood down from the Liberal Party and its parliamentary party room and joined the crossbench in response to losing his party endorsement for Monash ahead of the 2025 federal election. He stood for re-election in the 2025 election as an independent, but failed to win the seat.

Broadbent was born on 25 December 1950 in Koo Wee Rup, Victoria. He was a company director and self-employed retailer before entering politics. In the 1970s he was a "jumpsuit-wearing singer of show band The Trutones, which reportedly once opened for John Farnham".

Broadbent served on the Pakenham Shire Council from 1981 to 1987, including as shire president from 1984 to 1985. He also served as a commissioner of the Dandenong Valley Authority from 1984 to 1987 and as chairman of the Western Port Development Council from 1985 to 1990.

Broadbent was an unsuccessful candidate for the Division of Streeton in the 1984 and 1987 federal elections. He first entered parliament as member for the marginal Division of Corinella at the 1990 federal election, but lost to Labor's Alan Griffin at the 1993 election. At the 1996 federal election, he challenged Barry Cunningham in what was then the suburban-rural seat of McMillan, and won it after a very close race, but was defeated by Labor's Christian Zahra at the 1998 election. Broadbent contested and was elected for McMillan again at the 2004 election, after a redistribution erased the Labor majority and made it notionally Liberal. He was re-elected at the 2007 federal election, at the same time as the Coalition lost government, and held the seat until 2025. He supported changing the name of his electorate to commemorate John Monash rather than Angus McMillan.

Broadbent served on the speaker's panel from 2013 to 2019. He served on a wide range of parliamentary committees, including as chair of the standing committees on privileges and members' interests (2013–2019) and treaties (2018–present), and of the select committee into intergenerational welfare dependence (2018–2019). In May 2017, Broadbent announced he would resign from the speaker's panel and his committee chairmanship to protest against the Turnbull government's inaction on aged care. He stated that ministers Greg Hunt and Ken Wyatt had misled him over the construction of a facility at Bunyip, within his electorate.

During 2004, Fairfax media reported Broadbent lobbied then Immigration Minister Amanda Vanstone to intervene to grant suspected Mafia figure Francesco Madafferi an Australian visa.

On 12 November 2023, Broadbent lost Liberal preselection for the 2025 Australian federal election to Mary Aldred, who is the daughter of his late parliamentary colleague Ken Aldred. Two days later, he resigned from the Liberal Party.