Captain John Jordan Lloyd Williams MC (born 1894; date of death unknown) was a British World War I flying ace credited with five aerial victories.
He was educated at Oswestry and Ruthin Schools (where his father was headmaster from 1909), and from the age of seventeen he worked in the office of his uncle, Hugh Vincent, a solicitor, in Bangor.
Lloyd Williams was commissioned as a second lieutenant in the Denbighshire Hussars, a Yeomanry cavalry unit of the Territorial Force, on 17 July 1913.
Between 8 October and 8 November 1917 he was credited with three enemy aircraft destroyed and two captured, two with pilot Second Lieutenant R. C. Steele, and three with Captain Arthur Peck.
[7] In August 1919 Lloyd Williams was granted a permanent commission in the Royal Air Force with the rank of flying officer.