Saint Benedict the Black
Benedict the Moor, O.F.M., (Italian: Benedetto da San Fratello, 1526 – April 4, 1589) was an Italian Franciscan friar in Sicily who is venerated as a saint in the Catholic and Lutheran churches. Born of African slaves in San Fratello, he was freed at birth and became known for his charity. As a young man he joined a Franciscan-affiliated hermit group, of which he became the leader. In 1564 he was sent to the Franciscan friary in Palermo, where he continued good works. (From Wikipedia)
One of 22 Ugandan martyrs, Charles Lwanga is the patron of youth and Catholic action in most of tropical Africa. He protected his fellow pages (aged 13 to 30) from the homosexual demands of the Bagandan ruler, Mwanga, and encouraged and instructed them in the Catholic faith during their imprisonment for refusing the ruler’s demands.
For his own unwillingness to submit to the immoral acts and his efforts to safeguard the faith of his friends, Charles was burned to death at Namugongo on June 3, 1886, by Mwanga’s order. (From Franciscan Media)
St. Josephine Bakhita
Josephine Margaret Bakhita, F.D.C.C., (ca. 1869 – 8 February 1947) was a Sudanese-born former slave who became a Canossian Religious Sister in Italy, living and working there for 45 years. In 2000 she was declared a saint by the Catholic Church. (From Wikipedia)
He was ordained in Rome on Easter Sunday of 1886 at the Archbasilica of St. John Lateran. Assigned to the diocese of Alton [in Illinois and where I grew up and worked for many years in my youth - Ed.] now the Diocese of Springfield), Tolton first ministered to his home parish in Quincy, Illinois. Later assigned to Chicago, Tolton led the development and construction of St. Monica's Catholic Church as a black "national parish church", completed in 1893 at 36th and Dearborn Streets on Chicago's South Side.
Cause for Fr. Tolton's Canonization Here (Includes a video)
Augustus Tolton and St. Monica's Parish
There are, of course, many, many more Black and African saints in the Roman Catholic Church. For more, click on the following link:Black / African Saints.