The Auckland Central Business District (CBD), or Auckland city centre, is the geographical and economic heart of the Auckland metropolitan area. It is the area in which Auckland was established in 1840, by William Hobson on land gifted by mana whenua hapū Ngāti Whātua Ōrākei. It is New Zealand's leading financial hub, and the centre of the country's economy; the GDP of the Auckland Region was NZD$139 billion in the year ending September 2023.

Waitematā Harbour is the main access by sea to Auckland, New Zealand. For this reason it is often referred to as Auckland Harbour, despite the fact that it is one of two harbours adjoining the city. The harbour forms the northern and eastern coasts of the Auckland isthmus and is crossed by the Auckland Harbour Bridge. It is matched on the southern side of the city by the shallower waters of the Manukau Harbour.