queen consort of King Edward III of England (ruled 1327–77); her popularity helped Edward maintain peace in England during his long reign.

Philippa's father was William the Good, graaf van Hainaut (in modern Belgium) and Holland, and her mother, Jeanne de Valois, was the granddaughter of King Philip III of France. She was married to Edward in October 1327, nine months after he ascended the throne. Accompanying him on his expeditions to Scotland (1333) and Flanders (1338–40), she won universal respect for her gentleness and compassion. In 1347 she interceded and saved the lives of six burghers of Calais, France, whom Edward had threatened to execute. Unlike earlier foreign queens of England, she did not alienate the English barons by bringing large numbers of her countrymen to the royal court.

She was patron to the Hainauter chronicler Jean Froissart, who served as her secretary from 1361 until her death. Queen's College, Oxford University, was founded by her chaplain and named for her. Philippa bore Edward five daughters and seven sons; five of their sons were prominent in 14th-century politics.