Caritas Internationalis | 38,972 followers on LinkedIn. Caritas Internationalis is the humanitarian and development organisation of the Catholic Church. | Poverty and injustice have many causes. The 162 Caritas national members believe they can do more to combat them by combining their resources. National members come under the umbrella of Caritas Internationalis, with its headquarters in the Vatican City, and representatives at the United Nations in New York and Geneva, Rome, and Paris.