The siege of Compiègne (1430) was conducted by Duke Philip III of Burgundy after the town of Compiègne had refused to transfer allegiance to him under the terms of a treaty with Charles VII of France. The siege is perhaps best known for Joan of Arc's capture by Burgundian troops while accompanying an Armagnac force during a skirmish outside the town on 23 May 1430. Although this was otherwise a minor siege, both politically and militarily, and ultimately ended in a defeat for the Burgundians, the capture of Joan of Arc was an important event of the Hundred Years' War.

During this era, late in the Hundred Years' War, the politically independent Philip the Good, Duke of Burgundy, was allied with England under the regency of John, Duke of Bedford (who was the uncle of the child King, Henry VI). These two allies had conquered most of northern France during the preceding ten years. They suffered stunning losses in 1429 to a reinvigorated French army under the joint command of Joan of Arc and Duke John II of Alençon.^{[citation needed]}

The French had defeated the English at Patay on 18 June 1429 and had proceeded northeastward to crown King Charles VII of France at Rheims without further resistance, accepting the peaceful surrender of every town along their path. Compiègne was not along that road – its location is north of Paris – but along with several other cities it declared allegiance to Charles VII shortly after his coronation. It had previously been under Burgundian control.

In March 1430 the French court learned that Philip the Good, duke of Burgundy, planned to lay siege to the city. The count of Clermont delivered a message to the city that Compiègne was his according to legal treaty and demanded a surrender. Residents of the city expressed strong opposition to the demand and the French garrison commander Guillaume de Flavy [fr; it] readied the city for action.

Count John of Luxembourg departed for the expedition in command of the vanguard on 4 April. Philip the Good departed from Péronne on 22 April. Meanwhile, the Duke of Bedford was waiting at Calais for the arrival of King Henry VI of England, a nine-year-old boy who had recently been crowned king of England.

According to Régine Pernoud and Marie-Veronique Clin, Philip the Good planned to retake command of the cities that controlled the Oise river. Bedford supported the strategy in order to protect Île-de-France and Paris, which was then under Anglo-Burgundian control. King Charles VII of France had been hoping for a peace treaty with Burgundy but realized on 6 May that he had been duped by false promises.

Joan of Arc had realized the danger before the king did, and began meeting with a few Royal commanders in the area in an attempt to convince them to come to the city's aid. By April she had convinced several commanders, including Florent d'Illiers [fr] and an Italian mercenary commander named Bartolomeo Baretta, resulting in a company of about 300–400 volunteers. She departed for Compiègne, possibly without the king's knowledge, and arrived at the city on 14 May.

Several minor actions took place in the days that followed. Two days later Captain Louis de Flavy fled an artillery bombardment at Choisy-au-Bac and took refuge at Compiègne. On 18 May Joan of Arc's group, which by that point included Regnault of Chartres and the Count of Vendôme, attempted to surprise the Burgundians at Soissons. Residents of Soissons refused them entry and declared allegiance to Burgundy the following day.