胎儿是指已经怀于母体但尚未出生的人类。在法律上，胎儿因为尚非为人，不具权利主体地位，没有权利能力。但是为了保护其将来得享有的利益，通常以非死产者为限，增设法律来保护胎儿之利益。

维基共享资源中相关的多媒体资源：胎儿

In human development, a fetus (American English, /ˈfiːtəs/; plural "fetuses"), also spelled foetus (Commonwealth English), is a prenatal human between its embryonic state and its birth. The fetal stage of development tends to be taken as beginning at the gestational age of eleven weeks, i.e. nine weeks after fertilization. In biological terms, however, prenatal development is a continuum, with no clear defining feature distinguishing an embryo from a fetus. The use of the term "fetus" generally implies that an embryo has developed to the point of being recognizable as a human; this is the point usually taken to be the ninth week after fertilization. A fetus is also characterized by the presence of all the major body organs, though they will not yet be fully developed and functional and some not yet situated in their final anatomical location.