The Oriental Longhair is a variety of domestic cat. It is closely related to the Oriental Shorthair. The Oriental Longhair in some registries, such as The International Cat Association (TICA), is a separate breed. In others, such as the Cat Fanciers' Association (CFA), it is a division, along with the short-haired variety, of a merged breed, the Oriental. With no globally recognised naming convention, other cat fanciers may refer to this type as Foreign Longhair, Javanese or Mandarin. It was formerly known as the British Angora before being renamed in 2002 by British cat fanciers in order to avoid confusion with the Turkish Angora.

The Oriental Shorthair is a breed of domestic cat that is developed from and closely related to the Siamese cat. It maintains the modern Siamese head and body type but appears in a wide range of coat colors and patterns. Like the Siamese, Orientals have almond-shaped eyes, a triangular head shape, large ears, and an elongated, slender, and muscular body. Their personalities are also very similar. Orientals are social, intelligent, and many are rather vocal. They often remain playful into adulthood, with many enjoying playing fetch. Despite their slender appearance, they are athletic and can leap into high places. They prefer to live in pairs or groups and also seek human interaction. Unlike the breed's blue-eyed forebear, Orientals are usually green-eyed. The Oriental Longhair differs only with respect to coat length.