Blair Anderson Wark, VC, DSO (27 July 1894 – 13 June 1941) was an Australian soldier, quantity surveyor, and a recipient of the Victoria Cross, the highest decoration for gallantry "in the face of the enemy" that can be awarded to members of the British and other Commonwealth armed forces.

Having received the Distinguished Service Order in 1917 for his actions at the Battle of Polygon Wood, Wark was awarded the Victoria Cross in 1918 for his leadership and gallantry when in temporary command of his battalion over a three-day period, while conducting operations against the Hindenburg Line.

He became a respected member of Australian society, holding positions and directorships in several companies and charities until 1940, when he re-enlisted in the Citizen Military Forces for service in the Second World War.

Wark was promoted to lieutenant colonel and assumed command of the 1st Battalion (City of Sydney's Own Regiment), but died suddenly at Puckapunyal Camp, Victoria, of coronary heart disease, aged 46.

[10] Granted sixteen days leave to the United Kingdom from 3 November, Wark was selected for a senior officers' course at Aldershot, England, in January 1918.

[7] The battalion took part in the Battle of Amiens on 8 August, and continued to harry retreating German forces for the rest of the month and into early September.

[7] From 29 September to 1 October 1918, Wark assumed temporary command of the 32nd Battalion, leading the unit in the 5th Division's attack against the Hindenburg Line at Bellicourt (part of the Battle of St Quentin Canal), and the subsequent advance through Nauroy, Etricourt, Magny La Fosse and Joncourt.

On reaching the southern end of St Quentin Canal tunnel, Wark came across two hundred troops of the American 117th Infantry Regiment who appeared to be leaderless, and attached them to his own command.

Leading from the front, Wark dashed forward and silenced machine guns that were causing heavy casualties; this enabled the 5th Division to complete its task of forcing through to the Beaurevoir Line.

For most conspicuous bravery, initiative and control during the period 29th Sept. to 1st Oct. 1918, in the operations against the Hindenburg Line at Bellicourt and the advance through Nauroy, Etricourt, Magny La Fosse and Joncourt.

On 1st Oct., 1918, he again showed fearless leading and gallantry in attack, and without hesitation and regardless of personal risk dashed forward and silenced machine guns which were causing heavy casualties.

Throughout he displayed the greatest courage, skilful leading and devotion to duty, and his work was invaluable.The 32nd Battalion was resting and retraining away from the frontline when the Armistice was signed on 11 November 1918.

[5] On 31 May 1919, Wark married writer Phyllis Marquiss Munro at St George's Parish Church, Worthing, Sussex; ten days later, he boarded HT Port Lyttleton to return to Australia, where he was discharged from the Australian Imperial Force on 28 September 1919.

Two of Wark's brothers also served in the First World War, both in the 56th Battalion; Alexander was a sergeant, and Keith, a recipient of the Distinguished Conduct Medal, rose to the rank of lieutenant.

[2] In 1922, Wark and Phyllis divorced; five years later, on 10 December 1927, he married Catherine Mary Davis at St Stephen's Presbyterian Church, Sydney.

[16] The medical officer attending later concluded: "The cause of death in my opinion was angina pectoris, the fatal attack having been brought on by physical exertion during a night exercise under very cold conditions.