Howard Ehrlich is an American sociologist and anarchist activist. Formerly a professor at University of Iowa, he was co-founder of Research Group One that conducted research on behalf of activist organizations in the US. Subsequently, he co-founded a collective that produced a successful radio program called the Great Atlantic Radio Conspiracy, a free school, and started a peer-reviewed journal called Social Anarchism.
Today, Ehrlich is director of the Prejudice Institute, which studies ethnoviolence.