Grethen
# 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
