Arnauld

Arnauld is a surname and a masculine given name. It may refer to:

Surname

 * Agnès Arnauld (1593–1672), abbess of the Abbey of Port-Royal, near Paris, and a major figure in French Jansenism
 * Antoine Arnauld (1612–1694), French Catholic theologian, philosopher and mathematician
 * Antoine Arnauld (lawyer) (1560–1619), French lawyer in the Parlement de Paris and a Counsellor of State under King Henry IV of France
 * Antoine Arnauld (1616–1698), French memoirist
 * Carol Arnauld (1961–2022), French singer and songwriter
 * Céline Arnauld (1885–1952), Romanian writer
 * Henri Arnauld (1597–1692), French Catholic bishop
 * Isaac Arnauld (1566–1617), seigneur de Corbeville and Intendant des finances of France
 * Jean Arnauld, French 17th century philosopher and theologian
 * Marie Angélique Arnauld (1591–1661), abbess of the Abbey of Port-Royal
 * Simon Arnauld, Marquis de Pomponne (1618–1699), French diplomat and minister

Given name

 * Arnauld Mercier (born 1972), French former football player and current manager
 * Arnauld de Oihenart (1592–1668), Basque lawyer, politician, historian and poet