The Siberian is a centuries-old landrace (natural variety) of domestic cat in Russia and recently developed as a formal breed with standards promulgated the world over since the late 1980s.
The formal name of the breed is Siberian Forest Cat, but it is typically referred to as the Siberian or Siberian cat. Formerly, sometimes the names Moscow Semi-Longhair and Russian Longhair were also used. The colorpoint variant or sister breed, called the Neva Masquerade, is categorised as a different cat breed by some registries, including Fédération Internationale Féline (FIFé) and World Cat Federation (WCF).