Xenotransplantation or heterologous transplant is the transplantation of living cells, tissues or organs starting with one animal groups then onto the next. Such cells, tissues or organs are called xenografts or xenotransplants. It is diverged from allotransplantation (from other individual of same species), syngeneic transplantation or isotransplantation (unites transplanted between two hereditarily indistinguishable people of similar species) and autotransplantation (starting with one piece of the body then onto the next in a similar individual).

Xenotransplantation of human tumor cells into immunocompromised mice is an exploration strategy as often as possible utilized in pre-clinical oncology look into.

Human xenotransplantation offers a potential treatment for end-stage organ disappointment, a noteworthy medical issue in parts of the industrialized world. It additionally raises numerous novel clinical, legitimate and moral issues. A proceeding with concern is that numerous creatures, for example, pigs, have a shorter life expectancy than people, implying that their tissues age at a snappier rate. Malady transmission (xenozoonosis) and changeless adjustment to the hereditary code of creatures are likewise reasons for concern. Thus to issues with creature testing, basic entitlements activists have additionally questioned xenotransplantation on moral grounds. A couple of briefly fruitful instances of xenotransplantation are distributed.