Major Wanda Gertz (13 April 1896 – 10 November 1958) was a Polish soldier who served in the Polish Legion during World War I while masquerading as a man, under the name "Kazimierz 'Kazik' Zuchowicz". She subsequently served in the Ochotnicza Legia Kobiet ("Women's Voluntary Legion") of the Polish Army during the Polish–Soviet War, and was an officer of the Armia Krajowa ("Home Army"), codenamed "Lena", during World War II.