- male, 32 years old
- Timmy Simons (born December 11, 1976 in Diest) is a Belgian football defender and midfielder who, as of 2005 plays for PSV Eindhoven. He also is a...
- male, 36 years old
- Geert Verheyen (born March 10, 1973 in Diest) is a Belgian cyclist who currently raced for team Quick Step-Innergetic. In career, started in 1998,...
- male, 609 years old
- Peter van Diest (Latinised as Petrus Diesthemius) was a medieval writer from the Low Countries. The late 15th century morality play "Elckerlijc" is...
- female
- Bunny is the stage name of a Belgian-British musician, originally from Diest, Belgium.
- male, deceased (1994)
- Omer Rudolphe Jean Vanaudenhove (Diest, 3 December 1913 - Leuven, 26 November 1994) was a Belgian liberal and politician, burgomaster and minister....
- female, 40 years old
- Marleen Renders (born December 24, 1968 in Diest) is a long-distance runner from Belgium, who represented her native country thrice at the Summer...
- male
- Emile Degelin (*16 July 1926, Diest -) is a Belgian director and novelist.
- male, deceased (1542)
- Nicolas Cleynaerts (Clenardus or Clenard) (December 5, 1495 - 1542), Belgian grammarian and traveller, was born at Diest, in Brabant. Educated at...
- male, deceased (1908)
- Luiz Ferdinand Cruls (January 21,1848 - June 21,1908) was a Belgian astronomer who did most of his work in Brazil. He is also known as Louis Cruls....
- male
- Heinrich Birnbaum, also known as De Piro, a German pious and learned Carthusian monk. Little is known of him before his entrance into the...
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