Roman Catholic bishop of Honolulu

Depicted next to Pope Pius XI and below Saint Joseph, Patron of the Universal Church, is Bishop Stephen Alencastre who was the fifth and last Vicar Apostolic of the Hawaiian Islands.

The Roman Catholic Bishop of Honolulu is the diocesan bishop of the Catholic Diocese of Honolulu in the United States, the Latin Church ecclesiastical territory over the entire state of Hawaii and the unincorporated Hawaiian Islands. The Honolulu diocese is a suffragan see in the ecclesiastical province administered by the metropolitan Archbishop of San Francisco. The Bishop of Honolulu is a member of the United States Conference of Catholic Bishops. He has two ecclesiastical seats: the Cathedral Basilica of Our Lady of Peace and the Co-Cathedral of Saint Theresa of the Child Jesus, both located in the City of Honolulu.

Previous to the canonical elevation of the Diocese of Honolulu, a single priest led what was the Prefecture Apostolic of the Sandwich Islands. The prefecture apostolic was later incorporated into another ecclesiastical territory, led by a bishop serving as Vicariate Apostolic of Oriental Oceania. The prefecture was later elevated to a vicariate apostolic. The phrase "Sandwich Islands" was later deleted and replaced by "Hawaiian Islands". Five bishops have led the Vicariate Apostolic of the Hawaiian Islands. All bishops were members of the Congregation of the Sacred Hearts of Jesus and Mary.

Five diocesan bishops have served the Diocese of Honolulu. On May 17, 2005 Pope Benedict XVI appointed the fifth bishop of Honolulu Msgr. Clarence Silva, who was consecrated and installed on July 21, 2005.