Catholic Relief Services (CRS) is the official international humanitarian agency of the Catholic community in the United States. Founded in 1943 by the U.S. Conference of Catholic Bishops, CRS provides assistance to people in need in more than 100 countries and territories, focusing on alleviating human suffering and promoting human development.

Catholic Relief Services (CRS) has been operating in Tanzania since 1962, focusing on assisting marginalized and underserved communities. Their programs encompass health, nutrition, early childhood development, youth empowerment, and water, sanitation, and hygiene (WASH).