Männerlist größer als Frauenlist oder Die glückliche Bärenfamilie (Men Are More Cunning Than Women, or The Happy Bear Family;[1] WWV 48) is an unfinished Singspiel by Richard Wagner, written between 1837 and 1838.

Although the book of the opera (which Wagner as usual wrote himself) has long been available, the full text (including dialogue) and three completed musical numbers (in piano score), were discovered in a private collection in 1994 and later acquired by the archives of the Richard-Wagner-Stiftung in Bayreuth.

Wagner refers to this project in his "Red Pocketbook" and his autobiographical works A Communication to My Friends (1851) and My Life (1870–1880).

The jeweller Julius Wander, pretending to be an aristocrat, is tricked into promising to marry the ugly Aurora, daughter of the class-conscious Baron von Abendthau, by her cousin Leontine.

Two different productions of this work as a completed fragment were staged by the Hauptstadtoper Berlin and the Pocket Opera Company[2] Nuremberg in 2013.