Lionel Frost Bowen AC was an Australian politician. He was the deputy leader of the Australian Labor Party (ALP) from 1977 to 1990 and served as the sixth deputy prime minister of Australia in the Hawke government from 1983 to 1990.

The deputy prime minister of Australia is the deputy chief executive and the second highest ranking officer of the Australian Government. The office of deputy prime minister was officially created as a ministerial portfolio in 1968, although the title had been used informally for many years previously. The deputy prime minister is appointed by the governor-general on the advice of the prime minister. When Australia has a Labor government, the deputy leader of the parliamentary party holds the position of deputy prime minister. When Australia has a Coalition government, the Coalition Agreement mandates that all Coalition members support the leader of the Liberal Party becoming prime minister and the leader of the National Party becoming the deputy prime minister.