William George Algar Orde-Powlett, 5th Baron Bolton JP DL (21 August 1869 – 11 December 1944) was a British peer and Conservative Party politician.
Orde-Powlett was born on 21 August 1869. He was the eldest son of William Orde-Powlett, 4th Baron Bolton of Bolton Castle (son of William Orde-Powlett, 3rd Baron Bolton) and Lady Algitha Frederica Mary Lumley (the daughter of Richard Lumley, 9th Earl of Scarbrough).
He was educated at Eton College and the Royal Military College, Sandhurst.
He was commissioned as a lieutenant in the Yorkshire Hussars, but resigned the commission in April 1902. The following month he was on 28 May appointed major of the 1st Volunteer Battalion, the Princess of Wales's Own (Yorkshire Regiment). He later served with the Yorkshire Regiment during the First World War and retired with the rank of lieutenant colonel. From 1910 to 1918 he was MP for Richmond. From 1935 to 1944 he was Lord Lieutenant of the North Riding o