Constance Adolphine Quéniaux (9 July 1832 – 7 April 1908) was a dancer and courtesan at the Paris Opera Ballet.

She is the presumed model for Gustave Courbet's painting L'Origine du monde, in which a woman is seen explicitly displaying her vulva.

In 1859 Quéniaux had suffered from a knee injury that prevented her from continuing with her career in ballet,[5] and by the age of 34, she had officially retired from the Opera and was captivating the favour of an Ottoman diplomat, Halil Şerif Pasha.

[8] She began to actively support the Orphelinat des Arts—an institution for orphaned or abandoned children of artists.

[6] Correspondence between Alexandre Dumas and George Sand was discovered in 2018 by a French historian, Claude Schopp, referring to this painting.