The three regions of Kinki, Chugoku, and Shikoku were given over to the Apostolic Vicariate of Central Japan upon its establishment in 1888.

Only the Kyushu region fell under the Apostolic Vicariate of Southern Japan's jurisdiction.

It was then divided from the Paris Foreign Mission Society and had jurisdiction over only Nagasaki prefecture.

On December 19, 1968, Bishop Asajiro Satowaki of Kagoshima was named Archbishop Yamaguchi's successor following his resignation.

Auxiliary Bishop Takami was named Archbishop of Nagasaki on October 4, 2003, and enthroned on December 14 of the same year.

[3] The list of diocesan leaders below is quoted from the official website of the Catholic Bishops' Conference of Japan.

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