The present Kampala Archdiocese is the result of territorial changes:
Victoria Nyanza Vicariate. It was established by the Holy See in 1883 and was entrusted to the Missionaries of Africa commonly known as the White Fathers. Rubaga became the seat of the Bishop.
Upper Nile Vicariate. On July 13, 1894, the Holy See erected the Upper Nile Vicariate dividing it from Victoria Nyanza Vicariate and entrusted it to the Mill Hill Missionaries. Nsambya became the seat of the Bishop. The name of Vicariate Nyanza Vicariate was also changed to Vicariate Apostolic of Northern Victoria Nyanza.
Vicariate of Uganda. After the erection of vicariates in territories beyond the Nile on the southern side, the name of Northern Victoria Nyanza Vicariate became the Vicariate of Uganda on January 15, 1915.
Vicariate of Kampala. On June 10, 1948, the name of Upper Nile Vicariate was changed to the Vicariate of Kampala which later became the diocese of Kampala in 1953.
Archdiocese of Rubaga. The Catholic hierarchy in Uganda was established on March 25, 1953. The former Vicariates of Uganda became the dioceses of Uganda. Rubaga became the Archdiocese with 5 suffragan dioceses namely: Gulu, Masaka, Kampala, Mbarara and Tororo
Archdiocese of Kampala. On August 5, 1966, the Holy See joined together what was part the Diocese of Kampala and the Archdiocese of Rubaga and created the Archdiocese of Kampala. It was covering most parts of Central Uganda. Since, three other new dioceses have been carved out of it: Kiyinda-Mityana, Kasana-Luweero and Lugazi.
When the Catholic White Fathers came calling in 1879, they were allocated land near Lubaga Hill. In 1889, the reigning monarch, Mwanga II of Buganda, donated them land on Lubaga Hill itself where they built Saint Mary's Cathedral Rubaga, beginning in 1914 until 1925, with the assistance of monetary contributions from Roman Catholic congregations abroad. The early missionaries had problems pronouncing the word Lubaga. They instead pronounced it with an "r" as in Rubaga. In Luganda, there is no word that starts with an "R". Later, the missionaries built a hospital and a nursing school on the hill. Today, Lubaga remains the seat of the headquarters of the Catholic Church in Uganda. It is the seat of the Roman Catholic Archdiocese of Kampala. The remains of the first African Catholic bishop in Uganda, Bishop Joseph Nakabaale Kiwanuka and those of the first African Catholic Cardinal, Cardinal Emmanuel Kiwanuka Nsubuga are kept in the Catholic Mission on the hill.
Church landmarks
St. Mary's Cathedral Rubaga
Administrative centre of the Kampala Archdiocese
Residence of the Archbishop of Kampala Archdiocese
Lubaga Hospital: A 300-bed community hospital administered by the Catholic Archdiocese of Kampala