Stephen James Napier Tennant was a British socialite known for his decadent, eccentric lifestyle. He was a central member of the socialite group referred to as "Bright Young Things" by the tabloid press of the time. Tennant was noted for his affected demeanor, appearance and behaviors.

The Bright Young Things, or Bright Young People, was a term given by the tabloid press to a group of Bohemian young aristocrats and socialites in 1920s London. They threw flamboyant fancy dress parties, went on elaborate treasure hunts through nighttime London, and some drank heavily or used illicit drugs — all of which was enthusiastically covered by journalists such as Charles Graves and Tom Driberg.