Lydiard may refer to:
Places in England Lydiard Millicent, a Wiltshire village and parish, near the Borough of Swindon Lydiard Tregoze, a Wiltshire village and parish, near the Borough of Swindon Lydiard Park, formerly in the parish, now in the Borough of Swindon Lydiard House
Surname Arthur Lydiard (1917–2004), New Zealand runner and athletics coach Charles Lydiard (d. 1807), Royal Navy officer Livingston A. Lydiard (1867–1954), American politician
Christian name Lydiard H. Horton (1879––1945), psychologist and author
Other uses HMS Lydiard (1914), a destroyer of the Royal Navy
See also Liddiard, surname