title: Grethen
text: # Grethen
  
  Grethen is a surname. Notable people with the surname include:
  
  * Charles Grethen (born 1992), Luxembourgian middle-distance runner
  * Fonsy Grethen (born 1960), Luxembourgian carom billiards player
  * Henri Grethen (born 1950), Luxembourgian politician
  * Luc Grethen, Luxembourgian composer and musician
  