For the nonprofit that combats human trafficking and other human rights abuses, see MataHari: Eye of the Day.
Mata Hari was the stage name of Margaretha Geertruida (Grietje) Zelle (7 August 1876, Leeuwarden, The Netherlands – 15 September 1917, Vincennes, France), a Dutch exotic dancer and courtesan who was executed by firing squad for alleged espionage during World War I.