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