Douglas Henry Bardolph (18 February 1893 – 2 February 1951) was an Australian journalist, trade unionist and politician.
Henry Bardolph (ca.1854 – 22 June 1933) and Mary Bardolph (née Taggart) had five sons, and lived at Manly, New South Wales, where they ran a refreshment room or wine bar. They moved to Victoria, where two sons (Donald Francis Bardolph and Harold Travers Bardolph) died of pneumonic influenza within a few days of each other in the epidemic of 1919, aged 31 and 28 respectively. The family moved to Adelaide around 1919; Henry set up in business as building contractor, notably responsible for the Unley Oval grandstand. Their youngest son, (Clement Patrick) Charles Bardolph, died in Adelaide in September 1926 aged 29 years.
Doug worked as a journalist and proprietor of the Unley News. He edited and published the South Australian Worker from 1930 to 1933; his brother Ken Bardolph published the Labor Weekly from 1931 to 1934. Both were members of the A.L.P. and high-profile operators in the Union movement.
After a series of unsworn allegations of collusion and vote buying at a preselection ballot, a three-man committee of enquiry (Sampson, Burgess and Grealy) had both brothers sacked from the A.L.P. They, with other disaffected unionists, founded a South Australian chapter of the Lang Labor Party, with Doug as President. At a time of high and rising unemployment among the working classes, and dissatisfaction with both established political parties, the Lang message found ready acceptance. At the 1933 election, Lang Labor candidates Doug Bardolph, Bob Dale (who joined Lang Labor while a member for Sturt) and Tom Howard won all three seats in the multi-member Adelaide electorate. Other seats they contested were Port Adelaide, West Torrens and Legislative Council District No. 1. The A.L.P. applied to the Court of Disputed Returns to have the Adelaide election results overturned on various grounds, but failed.