The Dead Moon Circus (デッドムーンサーカス, Deddo Mūn Sākasu?) are a group of fictional antagonists from the Sailor Moon metaseries. They are the primary villains of the series' fourth season, called Dream in the manga and SuperS in the anime. In the English anime, they are called the Dark Moon Circus.
The Dead Moon Circus is led by the twisted Zirconia, in command by the absence of the dark Queen Nehellenia who is trapped within a mirror. Zirconia is searching for the legendary Golden Crystal, which will allow Nehellenia to break free of her entrapment and take over the Earth. They are the only group of villains with two subordinate groups: the Amazon Trio and the Amazoness Quartet.