Laurent Georges Grimmonprez known as Flokke Grimmonprez (14 December 1902 in Gentbrugge, Ghent, Belgium – 22 May 1984) was a Belgian footballer.
He played as a striker and inside-right for Royal Racing Club de Gand during the interwar period.
Grimmonprez played 10 games and scored one goal for the Diables Rouges.
He was picked for the Olympic Games in 1924 in France and played in the World Cup in 1934 in Italy.