Lulu, fictional character, an amoral femme fatale who is the protagonist of German dramatist Frank Wedekind’s plays Der Erdgeist (1895; Earth Spirit) and Die Büchse der Pandora (1904; Pandora’s Box).
German director G.W. Pabst’s silent film of Die Büchse der Pandora (1929), starring the American actress Louise Brooks, was based on both of Wedekind’s plays. The 20th-century Austrian composer Alban Berg also used the character and thematic material from Wedekind’s plays in his opera Lulu (1937).