Brigadier General Robert O'Hara Livesay DSO CMG (27 June 1876 – 23 March 1946) was a British Army officer and English sportsman who played international rugby union for England and first-class cricket.

Attached to the New Zealand Division during many of the major battles of World War I, he was mentioned in despatches three times and received the French Legion of Honour in recognition of that unit's successes.

Livesay was educated at Wellington College, where he played in the rugby XV and the cricket XI, leaving school in 1894 before attending the Royal Military Academy, Sandhurst.

[4] He fought in the Second Boer War in South Africa between 1900 and 1902, where he took part in the Relief of Ladysmith, the battles of Colenso, Spion Kop, Vaal Krantz, and the Tugela Heights and Pieter's Hill.

[1][5] He was mentioned in despatches in 1902 and appointed a Companion of the Distinguished Service Order (DSO) in the South Africa Honours list published on 26 June 1902.

[1][9] At the start of the First World War, Livesay was activated from the Reserve, initially serving as a staff officer with the 48th Infantry Division as part of "Central Force", charged with the defence of the United Kingdom.

[1] Livesay served in Germany with the Army of Occupation during 1919, commanding 10th (Service) Battalion, Queen's (Royal West Surrey Regiment) (Battersea) at Lindlar.