Kidney donation is the process of a person allowing a kidney to be removed from their body and transplanted to another person, usually to treat kidney failure. Kidney donation has been argued to be a highly effective way to increase human health.

A number of individuals involved with the effective altruism community or adjacent to it have donated a kidney, including Alexander Berger,^[1] Jeremiah Johnson,^[2] Zell Kravinsky,^[3] Dylan Matthews,^[4] Michael Page,^[5] and others.^[6]