The Diocese of Auckland is one of the thirteen dioceses and hui amorangi (Māori bishoprics) of the Anglican Church in Aotearoa, New Zealand and Polynesia. The Diocese covers the area stretching from North Cape down to the Waikato River, across the Hauraki Plains and including the Coromandel Peninsula.

The current bishop is Ross Bay QSM OStJ, who was enthroned as the 11th Bishop of Auckland at the Cathedral of the Holy Trinity on Saturday, 17 April 2010.

The theological college is the College of St John the Evangelist.

The Diocese of New Zealand was established in 1841, and originally covered the entire country. In 1842, its jurisdiction was described as simply "New Zealand". In 1854, it was limited to the Auckland region only. By act of the fourth General Synod (anticipating Selwyn's retirement), 15 October 1868 the diocese was renamed the Diocese of Auckland; Selwyn was called Bishop of New Zealand until his resignation of the See in 1869, whereas Cowie was called Bishop of Auckland from the announcement of his nomination.

The following individuals have served as the Bishop of Auckland, or any precursor title:

The following individuals have served as an Assistant Bishop of Auckland, or any precursor title:

The Diocese of Auckland has three archdeaconries: Carole Hughes is an Archdeacon of the Central Region, Michael Berry is an Archdeacon of the Southern Region and Jonathan Gale is an Archdeacon of the Northern Region.

Ven H Williams 1844-1867