The Burgundian Netherlands were those parts of the Low Countries that were ruled by the House of Valois-Burgundy between 1384 and 1482. During the Burgundian Age, those lands were also parts of the wider Valois-Burgundian State, which itself belonged, in terms of suzerainty, partly to the Kingdom of France and partly to the Holy Roman Empire. The Valois Dukes of Burgundy gradually acquired and united those lowlands into a political union that went beyond a personal union establishing central institutions for the first time (such as the States General).

The period began with Duke Philip the Bold taking office as count and lord of Antwerp, Artois, Flanders, Mechelen, and Rethel in 1384, and lasted until the death of Duchess Mary of Burgundy in 1482, after which the Valois-Burgundian State was dissolved, as Mary's titles and lands were inherited by her son Philip the Handsome, from the House of Habsburg, thus initiating creation of the Habsburg Netherlands.

In the 15th century, it was customary to refer to the Low Countries where the Duke of Burgundy ruled and usually resided as les pays de par-deçà meaning "the lands over here" as opposed to Burgundy proper (in Central France) which was designated les pays de par-delà meaning "the lands over there" (see also Terminology of the Low Countries).

Around the 13th and early 14th century, various Dutch cities became so important that they started playing a major role in the political and economical affairs of their respective fiefs. At the same time, the political system of relatively petty lords was ending, and stronger rulers (with actual power over larger territories) started to emerge. In the case of the Dutch, these two developments resulted in the political unification of all Dutch fiefs within a supra-regional state. This process started in the 14th century, with the Flemish cities gaining previously unseen powers over their county. When Count Louis II of Flanders died without a male heir, these cities (Bruges, Ypres, and Ghent) arranged a marriage between the count's daughter (future Countess Margaret III) and the duke of Burgundy (Philip the Bold). By doing this, they set in motion a chain of events eventually leading to the establishment and expansion of the Burgundian Low Countries.

A fair share (but not most) of these territories were inherited by the Burgundian dukes, a younger branch of the French royal House of Valois, upon the death of Count Louis II of Flanders in 1384. His heiress, Margaret III of Flanders in 1369 had married Philip the Bold, youngest son of King John II of France and the first of the Valois dukes of Burgundy at Dijon, who thus inherited the County of Flanders. The Flemish comital House of Dampierre had been French vassals, who held territory around the affluent cities of Bruges and Ghent, but also adjacent lands in former Lower Lorraine east of the Scheldt river ("Imperial Flanders") including the exclave of Mechelen, which were a fief of the Holy Roman Empire, and furthermore the neighbouring French County of Artois. Together they initiated an era of Burgundian governance in the Low Countries.

The Dampierre legacy further comprised the French counties of Rethel in northern Champagne and Nevers west of Burgundy proper, both held by Philip's younger son Philip II from 1407, as well as the County of Burgundy (Franche-Comté) east of it, an Imperial fief which had been part of the former Kingdom of Burgundy-Arles.

In the following decades, the Burgundian dukes expanded their territories in the Low Countries by the acquisition of several Imperial States: Duke Philip the Good purchased the County of Namur in 1421, inherited the Duchies of Brabant and Limburg in 1430, and seized the Counties of Hainaut, Holland and Zeeland in 1432, and the Duchy of Luxembourg in 1441. His son, the last Burgundian duke Charles the Bold, in 1473 annexed the Duchy of Guelders, which had been pawned by late Arnold of Egmond.

The Valois era would last until 1477, when Duke Charles the Bold died at the Battle of Nancy leaving no male heir. The territorial Duchy of Burgundy reverted to the French crown according to Salic law, and King Louis XI of France also seized the French portion of the Burgundian possessions in the Low Countries. The Imperial fiefs passed to the Austrian House of Habsburg through Charles' daughter Mary of Burgundy and her husband Archduke Maximilian of Habsburg, son of Emperor Frederick III. Maximilian, however, regarded the Burgundian Netherlands including Flanders and Artois as the undivided domains of his wife and himself and marched against the French. The conflict culminated at the Battle of Guinegate in 1479. Though Maximilian was victorious, he was only able to gain the County of Flanders according to the 1482 Treaty of Arras after his wife Mary had suddenly died, while France retained Artois.