The Trusts Arena is an indoor arena located in Henderson, Auckland, New Zealand. It is a multi-purpose stadium that primarily holds sports events and music concerts. The Arena was opened by then Prime Minister of New Zealand Helen Clark on 11 September 2004. It holds 4,901 people. Adjacent to the stadium is an outdoor athletics facility known as the Douglas Track and Field, which has a capacity of 3,000 people.

Henderson is a major suburb of West Auckland, in the North Island of New Zealand. It is 13 kilometres (8.1 mi) west of Auckland city centre, and two kilometres (1.2 mi) west of the Whau River, a southwestern arm of the Waitematā Harbour. The suburb is located within the Henderson-Massey Local Board of the Waitākere Ward, one of the thirteen administrative divisions of Auckland Council.