Humberto Sousa Medeiros GCC GCIH (October 6, 1915 – September 17, 1983) was a Portuguese-American clergyman of the Roman Catholic Church.

His father raised vegetables and ran a small variety store until 1931, when the family emigrated to the United States and settled in Fall River, Massachusetts.

Forced to leave school at age 16, Humberto swept floors in a local textile mill for 62 cents a day, studying English in his spare time.

He later served as vicar for religious, vice-chancellor, and finally chancellor, during which time he was elevated to the title of Monsignor in 1958.

[4] Medeiros pleaded with the Vatican to lift the excommunication of Leonard Feeney, who disobeyed church authority and took a strict interpretation of the doctrine of Extra Ecclesiam nulla salus.

[14] Medeiros served as a special papal envoy to the celebration of the 60th anniversary of the apparitions of Our Lady of Fátima in Portugal in May 1977.

Before the primaries for the 1980 congressional elections, Medeiros issued a pastoral letter that stated, "Those who make abortion possible by law cannot separate themselves from the guilt which accompanies this horrendous crime and deadly sin.

"[16] His words were considered to be directed at pro-choice candidates James Michael Shannon and Barney Frank, and criticized by some as violating the separation of church and state.

He was laid to rest at his request with his parents in Saint Patrick's Cemetery in his hometown of Fall River.

Massachusetts Governor (and future Democratic presidential nominee) Michael Dukakis described him as a "gentle, compassionate man".

[19] Adjacent to the (now-closed) Bishop Connolly High School, the Cardinal Medeiros Residence - a housing complex for retired Roman Catholic priests - is owned & operated by the Diocese of Fall River.