Peter Maes is a Belgian professional football manager and former player who is the head coach of Eerste Divisie club Willem II.

Willem II, also known as Willem II Tilburg, is a Dutch football club based in Tilburg, Netherlands. They play in the Eerste Divisie, the second tier of Dutch football, following relegation from the Eredivisie in the 2021–22 season. The club was founded on 12 August 1896 as Tilburgia. On 12 January 1898, the club was renamed Willem II after Dutch king William II of the Netherlands (1792–1849), who, as Prince of Orange and commander of the Dutch army, had his military headquarters in Tilburg during the Belgian uprising of 1830, spent much time in the city after becoming king, and died there.