『家畜人ヤプー』（かちくじんヤプー）は、1956年から『奇譚クラブ』に連載され、その後断続的に多誌に発表された沼正三の長編SF・SM小説。
なお、本作品はマゾヒズムや汚物愛好、人体改造を含むグロテスクな描写を含む。
未来帝国EHS（The Empire of Hundred Suns イース = 百太陽帝国、またの名を大英宇宙帝国）は、白色人種の「人間」と、隷属する黒色人種の半人間「黒奴」と、旧日本人である家畜「ヤプー」の3色の厳然たる差別の帝国である。
Yapu the Human Pet (kachikujin yapu), was serialized from 1956 in the "Mystery Club" magazine and afterwards was Shozo Numa's long SciFi/S&M short story published intermittently in many magazines.
Currently it contains grotesque depictions with masochism, scat-love, and body modifications.
The futuristic empire EHS (The Empire of the Hundred Suns) discriminates between the three race colors: Caucasian "humans," enslaved black half-humans called "Negros," and former Japanese people who are human pets known as "Yapu."
ヤプーに対しては、EHSの支配機構は抵抗するものを屈服させるのではなく、予め白人を神として崇拝させ「奉仕する喜び」を教え込み、服従を喜びのうちにさせる仕組みである。黒奴に対しては、巧妙な支配機構により大規模な抵抗運動は行えないようになっており、小規模の散発的抵抗がまれにあるだけである。ささいな過失などでも死刑に処されるなど酷使されるため、黒奴の寿命は30年ほどで、白人の200年より短い。
EHSは女が男を支配し、男女の役割が逆転した女権主義の帝国である。
The method of control for the EHS toward the Yapu isn't making those who resist submit to them but rather making the whites be worshiped as gods, teaching them that "happiness comes with serving" and structuring it within obedience. But when it comes to the blacks, rather than tricking them they make sure that no large-scale resistance movement can happen and only rarely do small-scale ones pop up. They are sentenced to death over the most trivial mistakes. However, they've used this so much that their life spans are about 30 years, much smaller than the 200-year life span for white people.
EHS is a feminist empire where women rule men and the roles between men and women have been switched.
EHSの帝位は女系の女子により引き継がれ、男性は私有財産を持つことすら禁止され、政治や軍事は女性のすることで、男性は化粧に何時間も費やし、学問や芸術に携わる。そして、家畜である日本人「ヤプー」たちは家畜であるがゆえに、品種改良のための近親交配や、肉体改造などを受けており、「ヤプー」は知性ある動物・家畜として飼育され、肉便器「セッチン」など様々な用途の道具（生体家具）や畜人馬などの家畜、その他数限りない方法により、食用から愛玩動物に至るまで便利に用いられている
The EHS throne is passed down a matrilineal line to daughters while men are forbidden to even own private property. Politics and military affairs are handled by the women so men spend hours on their make-up, studies, and the arts. And since the domesticated Japanese "Yapu" are human pets they are inbred from selective breeding, receive body modifications, and are bred as intelligent animals/farm animals. They're used as "human piss pots," furniture, for riding, and many other things. They're conveniently used for everything from food to pets.
