Lachaud is a French surname. It may refer to:

• Bastien Lachaud (born 1980), French politician representing la France Insoumise
• Joseph Lachaud de Loqueyssie (1848–1896), deputy of Tarn-et-Garonne
• Yvan Lachaud (born 1954), member of the National Assembly of France

• Henry Ockershausen House
• Henry O'Connor
• Henry O Cormacain
• Henry Odein Ajumogobia
• Henry Oden
• Henry Odili Nwume
• Henry O'Donnell
• Henry of Appleford
• Henry of Bar
• Henry of Bath
• Henry of Berg, Lord of Windeck
• Henry of Bolzano
• Henry of Bourbon-Parma
• Henry of Braybrooke
• Henry of Brunswick-Dannenberg
• Henry of Capua
• Henry of Castile
• Henry of Constantinople
• Henry of Coquet
• Henry of Cyprus
• Henry of Dannenberg
• Henry of England
• Henry Offer
• Henry of France (1121-1175)
• Henry of France (1121–1175)