Le Sphinx was a maison close (brothel) in Paris in the 1930s and 1940s. Along with the "Le Chabanais" and "One-Two-Two" it was considered one of the most luxurious and famous Parisian brothels.

A brothel, bordello, ranch, or whorehouse is a place where people engage in sexual activity with prostitutes. However, for legal or cultural reasons, establishments often describe themselves as massage parlors, bars, strip clubs, body rub parlours, studios, or by some other description. Sex work in a brothel is considered safer than street prostitution.