Jacques Marie Joseph Hubert Ghislain van Ypersele de Strihou (born 5 December 1936), was the Principal Private Secretary to the King of the Belgians (1983–2013). When Albert II of Belgium succeeded his brother Baudouin I of Belgium, he kept his private secretary, so Jacques van Ypersele de Strihou has served two kings. Together with , Marshal of the Royal Household, he represents the King at the board of the King Baudouin Foundation. Jacques van Ypersele de Strihou is nicknamed "Van Yp" in Belgium's political and media circles.