Marcelle Lentz-Cornette (2 March 1927 – 29 January 2008) was a Luxembourgish politician for the Christian Social People's Party (CSV).
During one of her official mission in Latin America, Manuel Noriega experienced her blunt and rather undiplomatic way of expressing her strong opinion on human rights and democracy.
Beside this, Marcelle Lentz-Cornette dedicated time and personal money to improve health care conditions in Nicaragua.
Marcelle Lentz-Cornette is also recognized as one of the Luxembourg politicians to have encouraged, protected and pushed Jean-Claude Juncker in his political career from the beginning.
On September 28, 2013 Prime Minister Jean-Claude Juncker, her "son in politics" and the Mayor of Sanem launched a square in new city Belval named Place Marcelle Lentz-Cornette.