The Tennis Court Oath (French: serment du jeu de paume) was a pledge signed by 577 members of France's Third Estate (who as of June 17 1789 called themselves the National Assembly) during the Estates-General of June 20, 1789 in Versailles. It is widely considered as a key moment in the French Revolution.

Jacques Necker, finance minister to King Louis XVI, had proposed that the King hold a Séance Royal (Royal Session) in an attempt to conciliate the divided Estates. The plan was agreed, however none of the three orders (see Estates of the Realm) were formally notified of the descision to hold a Royal Session. All debates were to be put on hold until the séance royal took place.

On the morning of June 20th the deputies were shocked to discover the doors to their chamber locked and guarded by soldiers. Immediately fearing the worst and anxious that a royal coup was imminent, the deputies congregated in a nearby indoor tennis court where they took a solemn collective oath 'never to separate, and to meet wherever circumstances demand, until the constitution of the kingdom is established and affirmed on solid foundations'. The deputies pledged to continue to meet until a constitution had been written, despite the royal prohibition. 577 men signed the oath, with only one refusing. The oath was both a revolutionary act, and an assertion that political authority derived from the people and their representatives rather than from the monarch himself.

See also

• John Ashbery's poem of the same name.

1789 | Oaths | French Revolution

Ballhausschwur | Juramento del Juego de Pelota | Serment du Jeu de paume | Prisega na loptalištu | Giuramento della Sala della Pallacorda | Eed op de Kaatsbaan | 球戯場の誓い | Ballhuseden | 网球厅宣誓