General Mario Daubenfeld (born 16 January 1958 in Wasserbillig) is a Luxembourgian soldier and a former Chief of Defence of the Luxembourg Army.
He is also a political activist.
He replaced Gaston Reinig as Chief of Defence in 2013.
He was replaced by Romain Mancinelli in 2014.He is an active member of the Alternativ Demokratesch Reformpartei (ADR), a conservative political party in Luxembourg.
Since 2016, he has been the President of the Bezierk Center.