Joseph Mitsuaki Takami (born 21 March 1946) is a Japanese prelate of the Catholic Church who served as archbishop of Nagasaki from 2003 to 2021.

From 1985 to 2002 he taught dogmatic theology and sacred scripture at the Seminary of Saint Sulpitius in Fukuoka, serving as Vice-Rector (1990-1991) and Rector (1993-1998).

He was named archbishop of Nagasaki on 17 October 2003[3] and served until Pope Francis accepted his resignation on 28 December 2021.

[4] In 2015, following the first archdiocesan synod, he said the archdiocese was experiencing "a deep sense of crisis" with the "withering and enervation" of the Catholic community that had fallen from 75,000 to 62,000 in 30 years.

[6][7] A priest in the Catholic Archdiocese of Nagasaki who is alleged to have misappropriated a total of 250 million yen in diocesan funds without permission, the archdiocese acknowledged the misappropriation and explained the circumstances in its bulletin "Catholic Kyoho" published on September 1, 2020, and the Archbishop stated, "It is all my responsibility and I sincerely apologize.