Les Dominos roses (The Pink Dominos) is a three-act farce by Alfred Delacour and Alfred Hennequin. It concerns a plan by two wives to test their husbands' fidelity. At a masked ball at the Paris Opéra, each wife disguises herself in a pink domino – a hooded cloak with a mask – to woo the other's husband.
The play was first produced at the Théâtre du Vaudeville, Paris on 17 April 1876 and ran for 127 performances. It was adapted for the West End and Broadway stages as The Pink Dominos, and later became the basis of a Viennese operetta (Der Opernball, 1898) and a musical comedy (To-Night's the Night, 1914).