South African farm attacks are violent crimes, including murder, assault and robbery, that take place on farms in South Africa. The attacks target both white and black farmers. The term has no formal legal definition, but such attacks have been the subject of discussion by media and public figures in South Africa and abroad.

The white genocide, white extinction, or white replacement conspiracy theory is a white supremacist conspiracy theory that claims there is a deliberate plot to cause the extinction of whites through forced assimilation, mass immigration, and/or violent genocide. It purports that this goal is advanced through the promotion of miscegenation, interracial marriage, mass non-white immigration, racial integration, low fertility rates, abortion, pornography, LGBT identities, governmental land-confiscation from whites, organised violence, and eliminationism in majority white countries. Under some theories, Black people, Hispanics, and Muslims are blamed for the secret plot, but usually as more fertile immigrants, invaders, or violent aggressors, rather than as the masterminds. A related, but distinct, conspiracy theory is the Great Replacement theory.