The borzoi (/ˈbɔːrzɔɪ/, literally 'fast'), also called the Russian wolfhound (Russian: Ру́сская псовая борзая, romanized: Russkaya psovaya borzaya), is a breed of domestic dog. The borzoi requires patient, experienced handling. They are gentle and highly sensitive dogs with a natural respect for humans, and as adults they are decorative couch potatoes with remarkably gracious house manners.